Shin-Etsu Chemical Co., Ltd.

Shin-Etsu Chemical C O., Ltd.

Hidenori Mizushima

Shigeru Ubukata

Masayuki Ikeno

Takashi Tanaka

Tsutomu Nakamura

Nobu Kato

Daichi Todoroki

Ryo Ashida

Toshio Shiobara

Takayuki Aoki

Shigeki Shudo

Kazuhiro Arai

Shigeki Ino

Yasuo Kimura

Tsuneo Kimura

Noriyuki Meguriya

Shinji Irifune

Syuuichi Azechi

Mitsuhiro Iwata

Tatsuei Hara

Provided is a flame-resistant airbag having a low rate of combustion. The flame-resistant airbag is obtained by forming, on a cloth substrate, a cured film of a composition containing: (A) 100 parts by mass of a liquid organopolysiloxane containing an alkenyl group bonded to a silicon atom; (B) 5 to 100 parts by mass of a three-dimensional network-structured organopolysiloxane resin in which 0.05 to 0.15 mol/100 g alkenyl groups are bonded only to D units, the ratio of M units to T and/or Q units is 0.65 to 1.40, and hydroxyl group content is 0.040 mol/100 g or less; (C) 0.1 to 50 parts by mass micropulverized silica having a specific surface area of at least 50 m/g; (D) an organohydrogen polysiloxane comprising a hydrogen atom bonded to a silicon atom, in an amount such that the number of hydrogen atoms bonded to silicon atoms in component (D) is 1 to 10 per total 1 alkenyl group bonded to a silicon atom in components (A) and (B); (E) an effective amount of a platinum group metal catalyst; and (F) 0.1 to 10 parts by mass of an organic silicon compound. The composition is applied in an amount of 5 to 150 g/m.

Flame-resistant airbag, method of manufacturing flame-resistant airbag, and addition-curable liquid silicone rubber composition for flame-resistant airbags

The purpose of the present invention is to provide an addition-curable silicone rubber composition which gives a cured product having a controlled oil-bleeding property and releasability from a mold, without increasing an amount of a bleeding oil to be added. Thus, the present invention provides an addition-curable silicone rubber composition comprising the following components (A) to (D): wherein Ris, independently of each other, an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, Ris, independently of each other, a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms, the amount of the monovalent aromatic hydrocarbon group is at least 35 mol % and less than 50 mol %, relative to a total amount of all substituents each bonded to a silicon atom, that is, all of Rand R, m is an integer of from 0 to 3, m' is an integer of from 0 to 3, n&#x2032; is an integer of from 0 to 3, n is an integer of from 10 to 20, and m+m&#x2032;+n+n&#x2032; is in a range of from 10 to 22.

Addition-curable silicone rubber composition

An addition-curable silicone rubber composition and an air bag are provided. The addition-curable silicone rubber composition is characterized by comprising:

Addition-curable silicone rubber composition and air bag

An addition-curable silicone rubber composition which contains: 100 parts by weight of (A) an organopolysiloxane that is represented by average composition formula (1) RSiO(wherein Rrepresent monovalent hydrocarbon groups that are the same as or different from each other, and a represents a positive number of 1.5-2.8) and has at least two alkenyl groups, each of which is bonded to a silicon atom, in each molecule; 0.3-20 parts by weight of (B) an organohydrogen polysiloxane that has at least two hydrogen atoms (SiH functional groups), each of which is bonded to a silicon atom, in each molecule; 5-80 parts by weight of (C) a reinforcing silica; and (D) an addition reaction catalyst, which is configured of a platinum group metal, in an amount of 0.5-1,000 ppm relative to the total weight of the components (A) and (B). This addition-curable silicone rubber composition also contains (E) an organopolysiloxane, which has one or more Si&#x2014;OH functional groups in each molecule, while having a polymerization degree of 10 or less, in an amount of 0.005-0.3% by weight relative to the total weight of the composition.

Addition-curable silicone rubber composition and silicone rubber

Provided is an addition-curable silicone rubber composition that contains (A) an alkenyl group-containing organopolysiloxane, (B) an organohydrogenpolysiloxane, (C) a platinum catalyst and (D) a reinforcement filler material surface treated with a benzotriazole derivative represented by formula (I) (in the formula, Ris a hydrogen atom or a monovalent hydrocarbon group and Ris a monovalent organic group) and that is capable of lowering the compression set of a cured article and suppressing changes in hardness after heat degradation characteristic testing while suppressing reduced curability. Also provided are a cured article thereof and a manufacturing method for the addition-curable silicone rubber composition.

Addition-curable silicone rubber composition and cured product

A method for producing an air bag base fabric which has a silicone rubber coating layer on at least one surface of a substrate is provided. The silicone rubber coating layer is prepared by curing a liquid silicone rubber coating composition having the low viscosity required in the coating and excellent adhesion to the air bag base fabric. An air bag base fabric produced by this method is also provided. In this method, an air bag base fabric is produced by preliminarily treating at least one surface of the textile fabric with an organosilicon compound containing an epoxy group and an alkoxy group bonded to a silicon atom in one molecule to prepare a substrate fabric containing about 0.01 to 5 parts by weight of the organosilicon compound, and coating and curing the liquid silicone rubber coating composition of particular formulation on the substrate.

Method for producing air bag base fabric, and air bag base fabric

A liquid silicone rubber coating composition is provided. The composition comprises (A) an organopolysiloxane having at least 2 alkenyl groups bonded to silicon atoms per molecule; (B) an organohydrogenpolysiloxane having at least 2 hydrogen atoms bonded to silicon atoms per molecule; (C) an addition reaction catalyst; (D) a fine powder silica; (E) an organic compound represented by the following general formula (1): wherein Ris a monovalent hydrocarbon group and n is an integer of 2 to 10; (F) an organosilicon compound having an epoxy group and an alkoxy group bonded to a silicon atom in the molecule; and (G) either one or both of a titanium compounds and a zirconium compounds. When used for the silicone rubber coating layer on air bag base fabric, excellent low burning speed defined by FMVSS-302 is realized and the cured coating layer exhibits low surface tackiness with high anti-blocking property.

Liquid silicone rubber coating composition, curtain airbag, and its production method

A liquid silicone rubber coating composition exhibiting high adhesion for an airbag base fabric; a curtain airbag having a silicone rubber coating layer of the cured composition formed on at least one surface of the base fabric; and a method for producing such curtain airbag are provided. The composition comprises (A) an organopolysiloxane having at least 2 alkenyl groups bonded to the silicon atoms per molecule; (B) an organohydrogenpolysiloxane having at least 2 structural units represented by formula (1) per molecule, the structural units being linked by a non-siloxane structural unit not containing SiH group; (C) an addition catalyst; (E) an organosilicon compound having an epoxy group and an alkoxy group bonded to the silicon atom in the molecule; and (F) a titanium compound and/or a zirconium compound; and preferably (D) a fine powder silica having a specific surface area of at least 50 m/g. 

Provided is a liquid silicone rubber coating composition with a viscosity at 25&#xb0; C. of 10,000 to 100,000 mPa&#xb7;s, comprising:

Liquid silicone rubber coating composition and air bag

Provided is a liquid silicone rubber coating composition, including predetermined quantities of (A) an organopolysiloxane containing 2 or more Si atom-bonded alkenyl groups, (B) an organohydrogenpolysiloxane of a specific structure containing 2 or more SiH groups, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m/g, (E) an organosilicon compound containing an epoxy group and a Si atom-bonded alkoxy group, and (F) a titanium compound and/or a zirconium compound. The coating composition exhibits excellent adhesion to an air bag base fabric and, therefore, is useful for producing a curtain air bag having a silicone rubber coating layer including a cured product of such a composition on at least one surface of the base fabric.

Liquid silicone rubber coating composition, curtain air bag, and method of producing same

Provided is a liquid silicone rubber coating agent composition, including: (A) an organopolysiloxane containing at least one alkenyl group bonded to a silicon atom within each molecule, (B) a straight-chain organohydrogenpolysiloxane containing a single silicon atom-bonded hydrogen atom only at each molecular chain terminal, with a viscosity at 25&#xb0; C. within a range from 0.001 to 1.0 Pa&#xb7;s, (C) an organohydrogenpolysiloxane containing at least three silicon atom-bonded hydrogen atoms within each molecule, with a viscosity at 25&#xb0; C. within a range from 0.001 to 10 Pa&#xb7;s, (D) an addition reaction catalyst, (E) a finely powdered silica with a BET specific surface area of at least 50 m/g, and (F) an adhesion imparting agent. Also provided is a curtain air bag with a rubber coating layer formed by curing this composition. The coating agent composition is useful for a curtain air bag that is capable of suppressing leakage of the inflator gas and exhibits excellent sustainability of the inflation period, and is also useful in the production of such an air bag.

Liquid silicone rubber coating agent composition and curtain air bag

A liquid silicone rubber coating composition that is ideal for forming a coating on an air bag is provided. The composition includes: (A) an organopolysiloxane containing two or more alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m/g, (E) an organosilicon compound containing an epoxy group and a silicon atom-bonded alkoxy group within each molecule, and (F) a compound represented by a general formula: Al(OH)(OCOR)(wherein, R represents identical or different, unsubstituted or substituted monovalent hydrocarbon groups of 1 to 20 carbon atoms). Leakage of the inflator gas when the air bag is in an inflated state is suppressed, enabling production of an air bag that exhibits excellent sustainability of the inflation period.

Provided is a liquid silicone rubber coating composition, including predetermined quantities of (A) an organopolysiloxane containing 2 or more Si atom-bonded alkenyl groups, (B) an organohydrogenpolysiloxane containing 2 or more SiH groups, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m/g, (E) an organosilicon compound containing an epoxy group and a Si atom-bonded alkoxy group, and (F) an oxyzirconium compound. The composition is useful for producing a silicone rubber coating layer on the substrate surface of a curtain air bag. The air bag suppresses leakage of the inflator gas, thus enabling the inflation time to be sustained for a satisfactory period.

A liquid silicone rubber coating composition comprising (A) an organopolysiloxane containing silicon-bonded alkenyl radicals, (B) an organohydrogenpolysiloxane containing SiH radicals, (C) an addition reaction catalyst, (D) finely divided silica, (E) an organosilicon compound containing epoxy and alkoxy radicals, (F) an organic titanium, zirconium or aluminum compound, and (G) a silanol-containing silane or siloxane compound is coated on a surface of an airbag base fabric and cured to form a rubber coating layer thereon. The composition is suited for curtain airbags.

Liquid silicone rubber coating composition, curtain airbag and making method

Provided is a liquid silicone rubber coating agent composition, including:

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Annaka, Japan

Hidenori Mizushima