Asahi-dow Limited

Asahi Kasei Kogyo Kabushiki Kaisha

Yutaka Matsuki

Tsuneo Hoki

Seizaburo Watanabe

An expandable polyetherimide composition comprising (A) polyetherimide and (B) a blowing agent containing in the said agent at least 10% by weight of a volatile organic foaming component having a solubility parameter [.delta..sub.c ] satisfying the following equation

Expandable polyetherimide compositions and foamed materials obtained

Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain higher aliphatic hydrocarbyl ether, ester or anhydride compounds.

Foaming synthetic resin compositions stabilized with certain higher

Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion of from 0.1 to 10 weight percent, based on olefin polymer, of an N-higher aliphatic hydrocarbyl substituted amide of a C.sub.1 -C.sub.8 aliphatic carboxylic acid.

Foaming synthetic resin compositions stabilized with N-(higher alkyl)

A thermoplastic synthetic resin such as polyethylene or ethylene-vinyl acetate copolymer resin containing 0.1 to 10 wt. % of a specific additive selected from specific classes of compounds, namely saturated higher fatty acid amides, saturated higher aliphatic amines and complete esters of saturated higher fatty acids is found to be very suitable for production of expanded articles and can be easily formed into expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics such as good closed cellular characteristic, high compressive strength, low density, etc.

Expanded thermoplastic synthetic resin and composition therefor

The dimensional stability, especially at elevated temperatures such as 70.degree. C., of thermoplastic resin foams, such as those of aliphatic olefin polymers, is substantially improved by the inclusion therein of from 0.01 to 5 weight percent, based upon said resin, of certain benzylideneaniline derivatives, azobenzene derivatives, azooxybenzene derivatives and the like.

Foamed thermoplastic resin articles and foamable compositions and

The invention relates to a foaming on foamable olefin polymer composition containing a nucleating agent and a cell size increasing agent comprising certain amino acids and/or polyhydric alcohols.

Polyolefin resin foam and process for continuously manufacturing the same

A thermoplastic synthetic resin such as polyethylene or ethylene-vinyl acetate copolymer resin containing 0.1 to 10 wt. % of a specific additive selected from specific classes of compounds, namely saturated higher fatty acid amides, saturated higher aliphatic amines and complete esters of saturated higher fatty acids is found to be very suitable for production of expanded articles and can be easily formed into expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics such as good closed cellular characteristic, higher compressive strength, low density, etc.

Growing community of inventors

Suzuka, Japan

Yutaka Matsuki