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:
Aug. 07, 1984
Filed:
Dec. 17, 1982
Applicant:
Inventors:
Lowell S Thomas, Midland, MI (US);
William P Paige, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
521 90 ; 524413 ; 524508 ; 525146 ; 525147 ; 525148 ; 523351 ;
Abstract
Carbonate polymer compositions comprise a carbonate polymer having dispersed therein a concentrate consisting essentially of a copolymer of an alkenyl-aromatic monomer and an .alpha.,.beta.-olefinically unsaturated nitrile monomer and a powdered or crystalline additive. The concentrates allow for good dispersion of additives in the carbonate polymer, provide for clean and efficient use of additives, and are easily processable. The copolymeric base resin does not deleteriously affect the good physical properties of the carbonate polymer with which it is blended at typical additive let down levels.