Back to results
US 4,431,760 AGranted
Esters as processing aids for maleic anhydride resins
AssigneeThe Standard Oil Company
InventorsBrandford E. Giddings, Richard J. Jorkasky, II
Life of this patent
Estimating the term…
Abstract
It has been found that the addition of small amounts of a benzoate or acetate ester of a polyfunctional hydroxy-containing compound to a maleic anhydride-containing resin greatly increases the flowability and processibility of these resins.
Claims8
A thermoplastic composition which comprises a blend of:
- (1) a copolymer of maleic anhydride comprising maleic anhydride and a monomer copolymerizable therewith, and
- (2) from 1-20 parts by weight of a lubricant dispersed in the copolymer wherein said lubricant is selected from the group consisting of the acetate ester of bisphenol A, sulphonyldiphenol, 4,4'-thiodiphenol, hydroquinone, resorcinol and o,o'-biphenol.
Dependencies are inferred from the claim text.