Organopolysiloxane graft polyester and its manufacturing method

Details Organopolysiloxane graft polyester and its manufacturing method Organopolysiloxane graft polyester and its manufacturing method

1990-05-11

1992-01-21

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

525446, 525447, 528 31, C08G 7704

Patent

active

050829165

ABSTRACT:
An organopolysiloxane graft-type polyester is prepared by reacting, in the presence of an effective amount of a hydrosilylation catalyst, a polyester containing at least one alkenyl group and having no unsaturated terminal groups, said polyester having a number average molecular weight of about 500 to about 5,000, and an organopolysiloxane containing one hydrosilyl group. The organopolysiloxane graft-type polyester has excellent compatibility with polyesters and can improve the surface smoothness and hydrophobic property of the polyester when modified therewith.

REFERENCES:
patent: 4348510 (1982-09-01), Keck et al.
patent: 4452962 (1984-06-01), Ginnings et al.
patent: 4496704 (1985-01-01), Ginnings
patent: 4613641 (1986-09-01), Haubennestel et al.
patent: 4725658 (1988-02-01), Thayer et al.

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