US 4,054,549 A · Polymer composition

Abstract

A blend of at least one boron, phosphorus or sulphur containing acid which may contain amino, hydrocarbyl or hydrocarbylamino substituents and a polypropylene/unsaturated carboxylic acid or anhydridge graft copolymer has adhesive properties similar to those of the graft copolymer alone. The blend is readily produced and can be used in a fibre reinforced thermoplastic material or in blends of an olefine polymer with a different type of polymer such as a polyamide or polyester. Suitable acids include phenyl boric acid, phenylphosphonic acid, diphenylphosphinic acid, sulphanilic acid, toluene sulphonic acid, phenylhydrazine-p-sulphonic acid, d-10-camphor sulphonic acid, orthanilic acid, hypophosphorus acid, sulphosalicylic, and particularly sulphamic acid. The graft copolymer is preferably a polypropylene/maleic anhydride graft copolymer.

Claims11

Dependent claims

A polymeric composition comprising a blend of (a) a graft copolymer obtained by grafting an unsaturated dicarboxylic acid or the anhydride thereof onto a propylene polymer, wherein the grafted acid or anhydride is present in an amount sufficient to give an acid moiety which is at least equivalent to that provided by 0.01 percent by weight of maleic anhydride and (b) at least one acid selected from the group consisting of phosphorus-containing acids of the formula

R'R"PO(OH)
wherein 1-90% by weight of the acid moieties of the blend of (a) and (b) are present in the acid and/or anhydride component of the graft copolymer;
and
R' is hydrogen or substituted or unsubstituted hydrocarbyl;
and
R" is OH or a group R';
except that R' is not hydrogen when R" is OH.

4 more elements

Dependencies are inferred from the claim text.

Polymer composition

Life of this patent

Polymer composition

Life of this patent

Abstract

Claims11