C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2014, 400/30
C08G 63/91 (2006.01) C08F 8/28 (2006.01) C08F 8/42 (2006.01) C08F 299/04 (2006.01) C08G 59/17 (2006.01) C08G 63/553 (2006.01) C08G 81/02 (2006.01)
Patent
CA 1293572
A B S T R A C T MODIFIED UNSATURATED POLYESTERS AND PROCESS FOR THE PREPARATION THEREFOR An unsaturated polyester modified by having an elasto- meric polymer segment chemically bonded thereto, the chemical bond comprising a cyclic member containing six carbon atoms, and pro- cess for the preparation therefor by incorporating a conjugated diolefin group into an elastomeric polymer, reacting the con- jugated diolefin group with an ethylenically unsaturated group in an unsaturated polyester so as to chemically combine the elasto- meric polymer and the polyester through a cyclic hydrocarbon structure comprising 6 C atoms and recovering a modified unsa- turated polyester. The modified unsaturated ester so produced exhibits good impact resistance and may be used in thermosetting compositions, which compositions are useful in various moulding applications.
553428
Shell Canada Limited
Smart & Biggar
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