Polystyrene blends and a method of making same

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C525S241000

Reexamination Certificate

active

07129297

ABSTRACT:
Disclosed are blends of polystyrene and at least one of syndiotactic polypropylene, ethylene propylene copolymers, and styrene-butadiene-styrene triblock copolymers. These blends are prepared using solution polymerization and have unique morphologies and desirable physical properties. The blends can also be prepared with graft-promoting or crosslinking agents and rubbers to prepare modified high impact polystyrene.

REFERENCES:
patent: 3658946 (1972-04-01), Bronstert et al.
patent: 3976721 (1976-08-01), Satake et al.
patent: 4111349 (1978-09-01), Buckler et al.
patent: 4144204 (1979-03-01), Mittnacht et al.
patent: 4183877 (1980-01-01), Ibaragi et al.
patent: 4233418 (1980-11-01), Lingier et al.
patent: 4419488 (1983-12-01), Fukumoto et al.
patent: 4482677 (1984-11-01), Teranaka et al.
patent: 4521569 (1985-06-01), Bubeck et al.
patent: 4567232 (1986-01-01), Echte et al.
patent: 4639494 (1987-01-01), Imai et al.
patent: 4777210 (1988-10-01), Sosa et al.
patent: 5194525 (1993-03-01), Miura et al.
patent: 5206302 (1993-04-01), Kohsaka et al.
patent: 5438097 (1995-08-01), Liles et al.
patent: 5551859 (1996-09-01), Cantrill et al.
patent: 5653867 (1997-08-01), Jody et al.
patent: 6031050 (2000-02-01), Nozawa et al.
patent: 6143833 (2000-11-01), Klussmann et al.
patent: 6784252 (2004-08-01), Ramanathan et al.
patent: 2002/0042476 (2002-04-01), Kido et al.
patent: 2002/0173588 (2002-11-01), Sosa et al.
patent: 2004/0018355 (2004-01-01), Shikano et al.
patent: 2004/0097650 (2004-05-01), Ogawa et al.
patent: 0400479 (1990-12-01), None
patent: 0400479 (1990-12-01), None
patent: 0400479 (1990-12-01), None
Smith, “Transparent High-Impact Polystyrene Resins and Their Manufacture”, United States Defensive Publication, T959,011 (Jun. 7, 1977), 1 page.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Polystyrene blends and a method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polystyrene blends and a method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polystyrene blends and a method of making same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3716425

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.