Preparation of block copolyether-ester-amides

Details Preparation of block copolyether-ester-amides Preparation of block copolyether-ester-amides

1993-01-22

1994-01-18

Carrillo, Ana L.

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

Synthetic resins

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

525425, 525434, C08G 6304, C08G 6532

Patent

active

052800873

ABSTRACT:
Disclosed is a novel two-step reaction method for preparing block copolyether-ester-amides. In the first step, caprolactam or other lactam is reacted with a polyether polyol in the presence of a catalyst to form an amino-terminated prepolymer with both a polyamide hard segment and a polyether soft segment. In the second step, the prepolymer is reacted with a dicarboxylic acid as a chain extender to form high molecular weight block copolyether-ester-amides.
The block copolyether-ester-amides prepared by this method are transparent, easily moldable by conventional processing methods such as extrusion and injection molding, and exhibit excellent mechanical properties.

REFERENCES:
patent: 4309518 (1982-01-01), Horlbeck et al.
patent: 4459389 (1984-07-01), Mumcu et al.
patent: 4536563 (1985-08-01), Okitsu et al.
patent: 4874825 (1989-10-01), Gergen et al.

Affiliated with

Also associated with

Rating

Preparation of block copolyether-ester-amides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of block copolyether-ester-amides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of block copolyether-ester-amides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1136980