Hardenable coating composition for polypropylene resins

Details Hardenable coating composition for polypropylene resins Hardenable coating composition for polypropylene resins

1986-04-08

1987-07-28

Bleutge, John C.

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

Synthetic resins

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

525119, 525120, 525121, C08L 5104, C08L 6302

Patent

active

046832645

ABSTRACT:
(1) A hardenable coating composition for polypropylene resins, having a chlorinated polyolefin as a principal constitutional element provided partially a crosslinking reaction beforehand between carboxyl group or acid anhydride group of a chlorinated polyolefin (I) obtained by chlorinating, to a degree within a range from 10 wt % to 50 wt %, a polyolefin which is modified with one or two or more types of compounds selected from a group consisting of unsaturated polycarboxylic acids or their acid anhydrides and has a saponification value ranging from 6 to 60, and epoxy group of a compound or a resin (II) which has at least two epoxy groups per molecule.
(2) A hardenable coating composition for polypropylene resins described in claim 1, wherein the weight ratio of chlorinated polyolefin (I) to the compound or the resin (II) which has epoxy groups is 100:0.5-50.
(3) A hardenable coating composition for polypropylene resins described in claim 1 to claim 2, wherein tertiary amines are added to promote the crosslinking reaction between carboxyl group or acid anhydride group and epoxy group.

REFERENCES:
patent: 2977334 (1981-03-01), Zoff, Jr. et al.
patent: 4012270 (1977-03-01), Fitko
patent: 4548985 (1985-10-01), Yazaki et al.
patent: 4550130 (1985-10-01), Kishida et al.

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