Graft polymers, containing polyvinyl acetal groups, on polyureth

Details Graft polymers, containing polyvinyl acetal groups, on polyureth Graft polymers, containing polyvinyl acetal groups, on polyureth

1989-10-19

1991-07-23

Marquis, Melvyn I.

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

Synthetic resins

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

525 58, 525 62, 525440, 525454, 525456, C08F29906, C08F 800, C08G 6391

Patent

active

050344757

ABSTRACT:
Polymers with polyvinyl acetal groups, which contain acetalized polyvinyl alcohol groups on polyurethane grafting substrates and which are prepared from graft polymers, containing vinyl alcohol groups on polyurethane grafting substrates, by reaction with aldehydes according to known methods. The aldehydes used can be any known aldehydes capable of acetalization reactions.
The polyurethane grafting substrates contain at least 2 urethane groups in the molecule and units from diisocyanates and diols, and polymer radicals of units of vinyl carboxylates having 3 to 20 carbon atoms and/or hydrolysis products thereof and, if appropriate, further monomer units are grafted onto the polyurethane grafting substrates. The proportion of vinyl alcohol units in the hydrolyzed or partially hydrolyzed graft polymers before the acetalization is >10% by weight.
In the acetalized polymer, the content of residual unacetalized vinyl alcohol units is >7.5 mol %, relative to the molar content (=100 mol %) of vinyl alcohol units in the starting graft polyvinyl alcohol before acetalization.
The graft polyvinyl acetals may be used as a constituent of coating compositions, as a coating agent constituent for the diverse substrates, as a material for thermoplastically processable moldings and as an interleaving film in laminated glasses.

REFERENCES:
patent: 4205146 (1980-05-01), Hermann et al.
patent: 4751266 (1988-06-01), Hermann et al.
patent: 4883699 (1989-11-01), Aniuk et al.

Affiliated with

Also associated with

Rating

Graft polymers, containing polyvinyl acetal groups, on polyureth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Graft polymers, containing polyvinyl acetal groups, on polyureth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graft polymers, containing polyvinyl acetal groups, on polyureth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-433087