ABS resins having impact resistance and low-gloss properties and

Details ABS resins having impact resistance and low-gloss properties and ABS resins having impact resistance and low-gloss properties and

1994-06-28

1995-11-28

Schofer, Joseph L.

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

Synthetic resins

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

525314, 525316, 525 52, C08L 5104, C08L 5502

Patent

active

054709156

ABSTRACT:
The present invention relates to ABS (Acrylonitrile-Butadiene-Styrene) resins having excellent impact resistance, low-gloss properties and superior heat resistance, and to a process for preparing them. In particular, between 5 wt % and 20 wt % butadiene rubber having double bonds is dissolved in between 30 wt % and 70 wt % graft-copolymerizing aromatic vinyl monomer and between 10 wt % and 50 wt % cyanized vinyl monomer. Polymerization controller and radical initiator are added to the above, and the mixture polymerized in a first step of bulk polymerization at a temperature of 80.degree.-120.degree. C. while stirring until polymerization proceeds to between 20 and 50% of completion. Between 40% and 70% .alpha.-methyl styrene monomer, between 10 wt % and 40 wt % unsaturated nitrile and between 5 wt % and 15 wt % butadiene rubber are then added to the polymerized mixture and the resulting mixture stirred for 30-60 minutes in a second step of bulk polymerization. Finally, distilled water and a suspending agent are added to disperse the mixture, which is then polymerized with a radical catalyst in a final step of suspension polymerization.

REFERENCES:
patent: 4141953 (1979-02-01), Bracke
patent: 4239863 (1980-12-01), Bredweg
patent: 4277574 (1981-07-01), Jastrzebski
patent: 4417030 (1983-11-01), Aliberti
patent: 4690959 (1987-02-01), Alle
patent: 4703090 (1987-10-01), Ferraresi
patent: 5041498 (1991-08-01), Hare
patent: 5210132 (1993-05-01), Matsubara
patent: 5225494 (1993-07-01), Ishiga
patent: 5278253 (1994-01-01), Baumgartner
patent: 5414045 (1995-05-01), Sue

Affiliated with

Also associated with

Rating

ABS resins having impact resistance and low-gloss properties and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with ABS resins having impact resistance and low-gloss properties and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ABS resins having impact resistance and low-gloss properties and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2014227