Alkali metal salts of cross-linked polymeric microgels as nuclea

Details Alkali metal salts of cross-linked polymeric microgels as nuclea Alkali metal salts of cross-linked polymeric microgels as nuclea

1982-12-16

1985-04-16

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

525176, 5283084, B29F 100

Patent

active

045115273

ABSTRACT:
Disclosed are nucleating agents for polyethylene terephthalate molding compositions comprised of alkali metal salts of carboxylic acid-containing polymeric microgel particles which are prepared by polymerizing in aqueous emulsion a monomer mixture containing about 5 to 50 percent by weight of polymerizable carboxylic acid monomers, up to 10 percent of a multifunctional crosslinking monomer and one or more carboxylfree relatively water insoluble polymerizable vinyl monomers.

REFERENCES:
patent: 4020126 (1977-04-01), Gander et al.
patent: 4152495 (1979-05-01), Labar
patent: 4322335 (1982-03-01), Nield
patent: 4397986 (1983-08-01), Hornbaker
patent: 4401792 (1983-08-01), Axelrod et al.
patent: 4404161 (1983-09-01), Bier

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