Abstract: This invention relates to novel salts composed of a cation derived from a peptide containing at least one basic group and an anion derived from a carboxy-terminated polyester, processes for the manufacture of such salts, and the use of such salts in the manufacture of extended release pharmaceutical compositions. The salts of the invention possess a variety of properties which are useful in the formulation of extended release pharmaceutical compositions, whether the salts are in pure form or are in admixture with either an excess of the peptide in its free, unbound form or an excess of the free polyester.

Abstract: This invention relates to novel salts composed of a cation derived from a peptide containing at least one basic group and an anion derived from a carboxy-terminated polyester, processes for the manufacture of such salts, and the use of such salts in the manufacture of extended release pharmaceutical compositions. The salts of the invention possess a variety of properties which are useful in the formulation of extended release pharmaceutical compositions, whether the salts are in pure form or are in admixture with either an excess of the peptide in its free, unbound form or an excess of the free polyester.

Abstract: This invention relates to novel salts composed of a cation derived from a peptide containing at least one basic group and an anion derived from a carboxy-terminated polyester, processes for the manufacture of such salts, and the use of such salts in the manufacture of extended release pharmaceutical compositions. The salts of the invention possess a variety of properties which are useful in the formulation of extended release pharmaceutical compositions, whether the salts are in pure form or are in admixture with either an excess of the peptide in its free, unbound form or an excess of the free polyester.

Abstract: A shaped polymeric article of a gel-polymerisate of a homogeneous mixture comprisingA. from 5% to 95% by weight of polyurethane precursors comprising at least one polyfunctional compound and at least one polyisocyanate of the structure ##STR1## where X is a divalent radical, preferably --CH.sub.2 --, said precursors being capable of forming a cross-linked polyurethane having a glass-rubber transition temperature of at least 25.degree. C, preferably at least 35.degree. C, andB. from 95% to 5% by weight of cured polyester resin precursors, comprisingI. at least one ethylenically unsaturated polyester, andIi. at least one vinyl monomer.

Abstract: A shaped polymeric article comprising from 1% to 60% by weight, preferably from 5% to 30% by weight of a cross-linked polymeric material having a glass-rubber transition temperature of not more than 25.degree.C and from 99% to 40% by weight, preferably from 95% to 70% by weight, of a vinyl polymer, in which the cross-linked polymeric material is formed from precursors therefor comprising at least one polymer, having a glass-rubber transition temperature of not more than 25.degree.C, at least 80% by weight of said polymer having a molecular weight of at least 3000, and preferably consisting of at least one polymer having a glass-rubber transition temperature of not more than 25.degree.C and a molecular weight of at least 3000, and at least on cross-linking agent reactive with said polymer.

Abstract: A reinforced silicone elastomer formed from 95% to 20% by weight of a cross-linkable poly(organo siloxane) and from 5% to 80% by weight of a polymerisable ethylenically unsaturated material by cross-linking a substantial proportion of the poly(organosiloxane) before a substantial proportion of the ethylenically unsaturated material is polymerised, the ethylenically unsaturated material subsequently being polymerised.