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:
Dec. 06, 1977
Filed:
Apr. 18, 1977
Shigemitsu Kamiya, Kamakura, JA;
Nippon Zeon Co. Ltd., Tokyo, JA;
Abstract
An acrylonitrile resin composition capable of affording shaped articles having superior alcohol resistance, impact strength, transparency and gas-impermeability, said composition consisting essentially of (A) a resinous copolymer obtained by polymerizing a monomeric mixture consisting of (1) 60 to 90% by weight of acrylonitrile, (2) 1 to 35% by weight of at least one acrylic monomer selected from the group consisting of alkyl acrylates and alkyl methacrylates with the alkyl group containing 1 to 6 carbon atoms, and (3) 0.5 to 15% by weight of an alkyl methacrylate with the alkyl group containing 12 to 18 carbon atoms; and (B) a graft copolymer obtained by polymerizing (1) 40 to 80 parts by weight of a monomeric mixture consisting of (i) 30 to 90% by weight of acrylonitrile, (ii) 1 to 70% by weight of at least one acrylic monomer selected from the group consisting of alkyl acrylates and acryl methacrylates with the alkyl group containing 1 to 6 carbon atoms and (iii) 0 to 15% by weight of an alkyl methacrylate with the alkyl group containing 12 to 18 carbon atoms, in the presence of (2) 20 to 60 parts by weight of a diene-type rubbery polymer composed of at least 50% by weight of a conjugated diene unit and at most 50% by weight of an acrylonitrile unit, the total amount of the diene-type rubbery polymer (2) and the monomeric mixture (1) being 100 parts by weight; the ratio of the resinous copolymer (A) to the graft copolymer (B) being such that the content of the diene-type rubbery polymer used to prepare the graft copolymer (B) being 3 to 20% by weight based on the weight of the composition.