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:
Oct. 04, 1983
Filed:
May. 10, 1982
Binnur Gunesin, Warren, NJ (US);
The Firestone Tire & Rubber Company, Akron, OH (US);
Abstract
The present invention provides a method for the modification of the impact strength of plastics by blending a plastic phase latex comprising a copolymer of an N-(alkoxymethyl)acrylamide monomer and at least one vinyl monomer with a rubber phase latex comprising a copolymer of a conjugated diene monomer, and an N-(alkoxymethyl)acrylamide monomer to form a mixture and, coagulating the mixture. A separate method is also provided for blending plastic and rubber phase latices which, in turn, modifies the impact properties of the plastics. It includes the steps of preparing a plastic phase latex comprising a first emulsion copolymer of a vinyl monomer selected from the group consisting of monovinyl aromatic compounds having from eight to about 20 carbon atoms and acrylic compounds having from three to about five carbon atoms and, an N-(alkoxymethyl)acrylamide monomer having the formula ##STR1## where R is selected from the group consisting of straight and branched alkyl chains having from one to about 20 carbon atoms; preparing a rubber phase latex comprising a second emulsion copolymer of a conjugated diene monomer having from about four to about 20 carbon atoms and the N-(alkoxymethyl)acrylamide monomer; blending the two latices and coagulating. A novel polymer having improved impact properties comprising a blend of the foregoing plastic and rubber latices is also provided for. The rubber phase latex disclosed herein can optionally contain one or more of the vinyl monomers.