Process for preparation of water borne curing agents

Details Process for preparation of water borne curing agents Process for preparation of water borne curing agents

1996-09-05

1998-01-06

Lipman, Bernard

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

Synthetic resins

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

5253305, 5253591, 5253593, 525380, C08F 800

Patent

active

057055734

ABSTRACT:
A novel process for preparing poly(2-isopropenyl-2-oxazoline or oxazine) and its methyl methacrylate copolymer, which are useful as water borne curing agents, particularly in the non-stick coating industry. The process converts commercially available poly(methyl methacrylate) into poly(2-isopropenyl-2-oxazoline or oxazine) polymers or copolymers with methyl methacrylate, while circumventing the use of the highly toxic monomer, 2-isopropenyl-2-oxazoline or oxazine. The process involves converting a poly(methacrylic ester) to the corresponding poly(.beta.-hydroxy-N-ethyl or propyl methacrylamide) and activating the ring-forming .beta.-hydroxy-N-ethyl or propyl methacrylamide moiety to form an oxazoline or oxazine ring.

REFERENCES:
patent: 4929666 (1990-05-01), Schmidt et al.
patent: 5006624 (1991-04-01), Schmidt et al.
patent: 5310792 (1994-05-01), Inoue
patent: 5610208 (1997-03-01), Dairoko et al.

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