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:
Nov. 30, 1976
Filed:
Aug. 25, 1976
Shoji Okami, Kobe, JA;
Shigeki Yasunaga, Kobe, JA;
Yoshihiko Hashimoto, Kobe, JA;
Teizo Saito, Kobe, JA;
Abstract
A thermoplastic resin composition of vinyl chloride polymer improved in impact strength and weather resistance, which comprises (1) 30 to 97 parts by weight of at least one of vinyl chloride polymers having not less than 70% by weight of vinyl chloride units and (2) 70 to 3 parts by weight of at least one of graft copolymers comprising (2-1) a backbone polymer and (2-2) monomers grafted in two stages thereon in a proportion of 20 : 80 to 80 : 20 by weight, the backbone polymer comprising (2-1-1) units of at least one of alkyl acrylates, of which not more than 20% by weight may be substituted with units of at least one of monovinylic monomers copolymerizable therewith, and (2-1-2) units of at least one of cross-linkable monomers in an amount of 0.01 to 10% by weight of the alkyl acrylates and, when used, the monovinylic monomers and the graft monomers comprising (2-2-1) 30 to 100% by weight of at least one of alkyl methacrylates, 0 to 70% by weight of at least one of aromatic vinyl compounds, 0 to 50% by weight of at least one of vinylic cyanides and 0 to 30% by weight of at least one of other monomers copolymerizable therewith based on the total weight of these monomers as those grafted at the first stage and (2-2-2) 85 to 100% by weight of at least one of aromatic vinyl compounds, alkyl acrylates and vinyl esters and 0 to 15% by weight of at least one of other monomers copolymerizable therewith based on the total weight of these monomers as those grafted at the second stage in a proportion of 95 : 5 to 50 : 50 by weight.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile