Polyurea polyurethane foamed sponge with high wet strength

Details Polyurea polyurethane foamed sponge with high wet strength Polyurea polyurethane foamed sponge with high wet strength

1980-12-29

1982-02-02

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 67, 521 72, 521 99, 521114, 521116, 521137, 521159, 521160, 521905, C08G 1814

Patent

active

043140343

ABSTRACT:
An open cell polyurea polyurethane foamed sponge is produced by mixing together a resin and an aqueous pahse. The resin phase consists of a prepolymer made from a hydrophilic oxyalkylene polyol which is capped with isocyanate groups and from about 1-30% by weight of the prepolymer of a polymeric polysocyanate such as a PAPI resin. The aqueous phase contains water, reinforcing fibers, surfactants, a thickening agent and preferably up to 40% by weight of diatomaceous earth. The resulting foam has a reduced volume swell, rapid wet out and improved wet strength.

REFERENCES:
patent: 3806474 (1974-04-01), Blair
patent: 3861993 (1975-01-01), Guthrie
patent: 4051081 (1977-09-01), Jabs et al.
patent: 4160076 (1979-07-01), Guthrie et al.
patent: 4181770 (1980-01-01), Schuhmacher et al.

Affiliated with

Also associated with

Rating

Polyurea polyurethane foamed sponge with high wet strength does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyurea polyurethane foamed sponge with high wet strength, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyurea polyurethane foamed sponge with high wet strength will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1821912