Color-stable, weather-, and impact-resistant molding composition

Details Color-stable, weather-, and impact-resistant molding composition Color-stable, weather-, and impact-resistant molding composition

1996-11-27

1998-03-10

Zemel, Irina S.

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

Synthetic resins

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

525 82, 525228, 525255, 525932, C08F 614, C08L 5502, C08L 3304, C08L 5104

Patent

active

057262454

ABSTRACT:
Highly transparent, impact-resistant molding compositions based on polymethyl methacrylate (PMMA), having excellent color stability both during processing at high temperatures, as well as when under thermal stress, as a result of multiple processing with simultaneously high weathering stability and stability of the optical characteristics with the effect of water. Preparation is carried out according to a multi-step extruder process, wherein an extruder for the melt coagulation and one for the compounding are connected in series. Addition of small quantities of reducing inorganic phosphorous compounds at a later stage provides prolonged effectiveness.

REFERENCES:
patent: 4602083 (1986-07-01), Hung et al.
patent: 5063259 (1991-11-01), Wanat et al.
patent: 5237004 (1993-08-01), Wu et al.
patent: 5346954 (1994-09-01), Wu et al.

Affiliated with

Also associated with

Rating

Color-stable, weather-, and impact-resistant molding composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color-stable, weather-, and impact-resistant molding composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color-stable, weather-, and impact-resistant molding composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-140258