Polyurethane powder coatings

Details Polyurethane powder coatings Polyurethane powder coatings

1994-08-08

1995-04-11

Short, Patricia A.

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

Synthetic resins

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

525444, 525934, 4284231, 4284258, C08L 7506, C08L 7512, C08L 6702

Patent

active

054059208

ABSTRACT:
This invention relates to thermosetting powder coatings formulated with a polyisocyanate and a blend of a hydroxylated polyester resin having a low hydroxyl number and a hydroxylated resin based on tris(hydroxyethyl)isocyanurate having a high hydroxyl number. Powder coatings from this blend exhibit high hardness and good caking stability.

REFERENCES:
patent: 3211585 (1965-10-01), Meyer et al.
patent: 3249578 (1966-05-01), Meyer et al.
patent: 3646374 (1972-02-01), Jordan et al.
patent: 4476279 (1984-10-01), McGregor et al.
patent: 5229470 (1993-07-01), Nozakl et al.
Rucote 103 Technical Bulletin, Ruco Polymer Corporation.

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