Union Carbide Chemicals & Plastics Technology Corporation

Osi Specialties, Inc.

Witco Corporation

Crompton Gmbh

Ck Witco Corporation

Cromption Corporation

Anna M Czech

Gerald J Murphy

Curtis L Schilling, Jr

Kalman Koczo

Jeffrey A Cooke

Charles E Creamer

Robert E Sheridan

Reactive compositions comprise an amino-modified organopolysiloxane and an epoxy-modified organopolysiloxane. The composition cures slowly at room temperature or may be rapidly cured at or above room temperature in the presence of a carboxylic acid. The cured compositions may be utilized as elastomers, sealants, electronic potting materials, encapsulants, conformal coatings, foams, shock adsorbing gels, and molds and exhibit adhesion to metals, plastics, synthetic fibers, wood, paper, and glass.

Silicone amino-epoxy cross-linking system

A composition is disclosed that comprises non-hydrolyzable, block, non-(AB) type copolymers comprising units of the formula &lcub;XR &lsqb;(SiO(R ) &rsqb; Si(R ) R X&rcub;, units of the formula &lcub;YO(C H O) Y&rcub;, and linking groups &mdash;NR &mdash;, wherein R is alkyl, R is a divalent organic moiety, X and Y are independently selected divalent organic groups formed by the ring opening of an epoxide, R is selected from the group consisting of alkyl, aryl, aralkyl, oxygen-containing alkyl, oxygen-containing aryl, and oxygen-containing aralkyl, a&equals;2 to 4, b&equals;2 to 100, and x&equals;1 to 500.

Block, non-(AB)n silicone polyalkyleneoxide copolymers with tertiary amino links

Emulsions and dispersions of polymers formed from acrylated hydrophilic polysiloxanes and their copolymers with acrylate/methacrylate comonomers are taught herein wherein the polymer is formed in a solvent via radically catalyzed polymerization. Such a polymer has utility in personal care applications, as well as textile finishes and coating formulations.

Hydrophilic siloxane latex emulsions

Silicone terpolymers, modified with phenyl or substituted phenyl groups and polyalkyleneoxides, which exhibit refractive indices >1.47 are disclosed. These materials of the present invention when incorporated in formulations for surface treatment improve slip and gloss of the substrates to which they are applied, and are useful in hair care and coatings applications.

Silicone terpolymers with high refractive indices

The present invention discloses non-hydrolyzable, block, (AB).sub.n A type, copolymers comprising alternating units of polysiloxane and amino-polyalkyleneoxide and provides a method for the preparation of these copolymers. Also provided is the use of these copolymers as softeners, in particular durable, hydrophilic textile softeners, which improve tactile properties of the textiles substrates treated with the commercial soil release finishes, without substantially detracting from their properties. The copolymers of the present invention have alternating units of polysiloxane [X(C.sub.a H.sub.2a O).sub.b R.sup.2 [(SiO(R.sup.1).sub.2 ].sub.c Si(R.sup.1).sub.2 R.sup.2 (C.sub.a H.sub.2a O).sub.b X] and polyalkyleneoxides [YO(C.sub.a H.sub.2a O).sub.d Y] wherein R.sup.1 is a C.sub.1 to C.sub.4 alkyl, preferably methyl, R.sup.2 is a divalent organic moiety, X and Y are divalent organic groups selected from a secondary or tertiary amine and a ring opened epoxide, such that when X is a ring opened epoxide, Y is an amine and vice versa, a=2 to 4, preferably 2 to 3, b=0 to 100, d=0 to 100, b+d=1 to 100, preferably 10 to 50, and c=1 to 500, preferably 10 to 100.

Silicone aminopolyalkyleneoxide block copolymers

Aminosiloxanes bearing 4-amino-3,3-dialkylbutyl substituents are prepared by a multistep process including addition of 2,2-dialkylacetonitrile to vinylic siloxanes, hydrogenation of the nitrile adducts so formed to yield 4-amino-3,3-dialkylbutyl siloxanes, and optional equilibration of the latter with other siloxane sources, to form aminosiloxanes, which are useful for the treatment of textiles and fabrics and for the preparation of siloxane-containing block copolymers.

Aminosiloxanes with 4-amino-3,3-dialkylbutyl groups

Aminopolysiloxanes of the following structure Q.sub.2 RSiO-- (SiR.sub.2 O).sub.x -(SiRR.sup.1 O).sub.y -SiRQ.sub.2 wherein R is a monovalent hydrocarbon group having 1 to 10 carbon atoms including alkyl, aryl and aralkyl groups; R.sup.1 is CH.sub.2 --CH.sub.2 --C--(CH.sub.3).sub.2 --CH.sub.2 --NHR.sup.2, R.sup.2 is hydrogen, an alkyl of C.sub.1 -C.sub.6, an alkyl amine of C.sub.1 -C.sub.6, or an alkanolamine of C.sub.1 -C.sub.6 ; Q is R, R.sup.1, hydroxyl, or an alkoxy of C.sub.1 -C.sub.4. x can be zero or integer; y is an integer, with x+y being less than 1,100, for use in various applications, including softening textiles.

Aminopolysiloxanes with hindered 4-amino-3,3-dimethylbutyl groups

The present invention discloses non-hydrolyzable, block, (AB).sub.n A type, copolymers comprising alternating units of polysiloxane and amino-polyalkyleneoxide and provides a method for the preparation of these copolymers. Also provided is the use of these copolymers as softeners, in particular durable, hydrophilic textile softeners, which improve tactile properties of the textiles substrates treated with the commercial soil release finishes, without substantially detracting from their properties. The copolymers of the present invention have alternating units of polysiloxane �X(C.sub.a H.sub.2a O).sub.b R.sup.2 �(SiO(R.sup.1).sub.2 !.sub.c Si(R.sup.1).sub.2 R.sup.2 (C.sub.a H.sub.2a O).sub.b X!and polyalkyleneoxides �YO(C.sub.a H.sub.2a O).sub.d Y!wherein R.sup.1 is a C.sub.1 to C.sub.4 alkyl, preferably methyl, R.sup.2 is a divalent organic moiety, X and Y are divalent organic groups selected from a secondary or tertiary amine and a ring opened epoxide, such that when X is a ring opened epoxide, Y is an amine and vice versa, a=2 to 4, preferably 2 to 3, b=0 to 100, d=0 to 100, b+d=1 to 100, preferably 10 to 50, and c=1 to 500, preferably 10 to 100.

A method is provided for treating a textile to impart amine-like softness and reduced yellowing, which method comprises treating a textile with an- aminopolysiloxane having an amine content as NH.sub.2 ranging from about 0.15 to 0.25 percent by weight as NH2 and having a molecular weight of at least about 30,000.

Method for imparting softness with reduced yellowing to a textile using

A method is provided to impart stain resistance to a polyamide substrate, which method comprises contacting the substrate with an anionic polysiloxane selected from the group consisting of (A) a polysiloxane having at least one carboxy group, (B) a polysiloxane having at least one phosphonic acid group or a phosphonic salt group, (C) a polysiloxane having at least one carboxy group and at least one sulfonate group, and (D) a mixture of at least two of polysiloxanes (A), (B) and (C).

Polysiloxanes having anionic carboxy, phosphonic or carboxy and

The invention provides a method for imparting durable press properties to a cotton-containing textile which avoids the use of formaldehyde and the problems associated therewith, which method comprises treating a textile with an aqueous finishing agent solution comprising at least one acetal of glutaraldehyde and at least one acidic catalyst and optionally contains a silicone softener and/or a pH-maintaining additive such as sodium perborate.

Method of imparting durable press properties to cotton textiles without

A durable hydrophilic silicone textile finish is produced on cellulose-containing textiles to impart durable hydrophilic softness and durable press properties to the textile. The silicone finish is produced from an aqueous solution of glyoxal, a reactive organomodified silicone copolymer, a glycol and an acidic catalyst. The treating composition is applied to the textile and cured by heating at an elevated temperature to bond the silicone to the cellulose.

Silicone textile finishes

Process for preparing a modified aminoorganosiloxane emulsion having improved non-yellowing properties comprising reacting (a) a dialkyl pyrocarbonate, (b) a dialkyl oxalate, or (c) a mixture thereof with an aminoorganosiloxane in an aqueous emulsion in which (a), (b) or (c) ranges from about 0.1% to 15% based on the weight of aminoorganosiloxane in the emulsion.

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Peekskill, NY, United States of America

Anna M Czech