Nucleating systems

Details Nucleating systems Nucleating systems

1988-12-01

1990-08-14

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524494, 524504, 524505, 524513, 524605, C08K 515, C08L 6702

Patent

active

049488236

ABSTRACT:
Solid anhydrides of carboxylic acids, which anhydrides have a melting temperature of at least 100.degree. C. and a boiling temperature of at least 230.degree. C. at STP are suitable for use in nucleating systems for polyester compositions. Such nucleating systems reduce (i) mold cycle time (ii) mold temperature and (iii) the sensitivity of the composition to water during molding.

REFERENCES:
patent: 4239677 (1980-12-01), Dieck
patent: 4264487 (1981-04-01), Fromuth
patent: 4299927 (1981-11-01), Dombroski
patent: 4351758 (1982-09-01), Lu et al.
patent: 4558096 (1985-12-01), Boon et al.

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