The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 1991
Filed:
Aug. 06, 1990
Toshio Igarashi, Kyoto, JP;
Akira Wakatsuki, Ibaraki, JP;
Kenichi Sudo, Takatsuki, JP;
Yuu Shida, Takatsuki, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A polyvinyl chloride resin composition for powder molding, containing a dry blend of a polyvinyl chloride resin and a plasticizer, wherein the plasticizer is a mixed trimellitate of a mixture of compounds of the formula ##STR1## where R is an alkyl group, each of the compounds contains the same or different alkyl group in the same or different molecules, and the alkyl groups in the mixture have a straight chain ratio of at least 85 mol % and consist of 5 to 55 mol % of alkyl groups having at most seven carbon atoms, 45 to 95 mol % of alkyl groups having eight carbon atoms, and at most 10 mol % of alkyl groups having at least nine carbon atoms.