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Article: Nylon melt-strength modifier. (Rohm and Haas Co.'s Paraloid EXL-4151 reactive acrylic-imide copolymer)
- Article from:
- Plastics Technology
- Article date:
- April 1, 1991
- Author:
CopyrightCOPYRIGHT 1991 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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NYLON MELT-STRENGTH MODIFIER
Rohm and Haas Co., Philadelphia, presented the first detailed discussion of the use of its Paraloid EXL-4151 reactive acrylic-imide copolymer as a modifier to improve the inherently poor melt strength of nylon 6 for blow molding, blown film and thermoforming. This modifier is one of at least four in the EXL-4000 series, commercial production of which began last June (see PT, Feb. '88, p. 23; Nov. '90, p. 76). The material, also described as a polyglutarimide, is commercially available at $1.75 lb/tl. It has a glass-transition temperature of 302 F and approximately 5% total acid functionality.
John B. De Vries, market ...