Back to results
US 4,539,358 AGranted
Polycarbonate compositions
AssigneeGeneral Electric Company
InventorPing Y. Liu
Life of this patent
Estimating the term…
Abstract
Ternary compositions are disclosed which comprise a mixture of a high molecular weight thermoplastic, aromatic polycarbonate, an acrylate copolymer, and an organic, ester-type plasticizer.
Claims12
A ternary polycarbonate composition comprising in admixture, a high molecular weight aromatic polycarbonate, a minor amount of an acrylate copolymer which is a copolymer of a C.sub.1 -C.sub.5 acrylate and a C.sub.1 -C.sub.5 methacrylate, and a minor amount of an organic ester plasticizer.
A ternary polycarbonate composition comprising an admixture of a high molecular weight aromatic polycarbonate;
- and acrylate copolymer in an amount of about 2-4.2 parts by weight per hundred parts of said aromatic polycarbonate, said acrylate copolymer being a copolymer of a C.sub.1 -C.sub.5 acrylate and a C.sub.1 -C.sub.5 methacrylate, said acrylate being a member selected from the group consisting of methyl acrylate, ethyl acrylate, n-butyl acrylate, 1,3-butylene diacrylate, isobutyl acrylate, and 1,4-butanediol diacrylate, and said methacrylate being a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, butyl methacrylate, isobutyl methacrylate, and 1,3-butylene dimethacrylate;
- and, an organic, ester-type plasticizer in an amount of about 0.4-2.0 parts by weight per hundred parts of said aromatic polycarbonate and selected from the group consisting of azelate esters, adipate esters, and phthalate esters.
Dependencies are inferred from the claim text.