Comb-shaped copolymers of a macromolecular monomer of polyhaloet

Details Comb-shaped copolymers of a macromolecular monomer of polyhaloet Comb-shaped copolymers of a macromolecular monomer of polyhaloet

1992-10-14

1993-07-06

Foelak, Morton

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525403, 525404, 525421, 525445, 525455, 5262929, C08L 2704, C08L 3314

Patent

active

052254917

ABSTRACT:
This invention relates to a comb-shaped graft copolymer, to a process for making the comb, and to a polymer blend made with the comb. The comb is made by a free radical polymerization of an ethylenically unsaturated monomer with a macromolecular monomer ("macromer" for brevity) of a haloalkylene oxide ("HAO" for brevity) homopolymer, random or block copolymer. The comb copolymer and blends of the comb with a polymer(s) may be cured. A comb with a terminal acrylyl or methacrylyl group or "head" and pendant polyether chains, which always include some HAO repeating units, may be made in an emulsion or suspension polymerization process which provides a comb having adequately high molecular weight so that the comb may be used in blends. The preferred comb of epichlorohydrin has a (meth)acrylyl head at one end, through which it (the macromer) is polymerizable, and a terminal hydroxyl (OH) group, or an end-capping group derived from the OH group at the other end. Each "tine" (pendant chain) of the comb is an uninterrupted one (that is, having no branch) having at least two repeating units derived from a HAO, preferably epichlorohydrin ("ECH"), with the tine terminating with a OH group, or an end-capping group derived from the OH group.

REFERENCES:
patent: 4791189 (1988-12-01), Yu
patent: 4983689 (1991-01-01), Yu
patent: 5061772 (1991-10-01), Yu
patent: 5120790 (1992-06-01), Yu

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