Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-05-16
1999-01-12
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
524119, 524123, C08L 6102, C08K 549
Patent
active
058591478
ABSTRACT:
A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least one polyamide which contains cycloaliphatic monomer units and which is amorphous and transparent; and a flame-retardant additive which is present in an amount effective to reduced flammability of the polyamide composition, which is dissolved in the at least one polyamide, and which is at least one alkyl phosphonic acid compound having a general formula: ##STR1## wherein R and R' each represent, independent of each other, an alkyl group having from 1 to 4 carbon atoms, and x=0 or 1. An article molded from this composition is transparent, has reduced flammability, and has reduced migration of flame-retardant additive so that it is film-free.
REFERENCES:
patent: 3789091 (1974-01-01), Anderson et al.
patent: 3849368 (1974-11-01), Anderson et al.
patent: 3966838 (1976-06-01), Feldmann et al.
patent: 4268459 (1981-05-01), Hoffman
patent: 4388431 (1983-06-01), Mauric et al.
patent: 4458045 (1984-07-01), Mauric et al.
International Standard, Plastics--Polyamide (PA) moulding and extrusion materials--Part 1: Designation, Reference No. ISO 1874-1:1992 (E).
Dalla Torre Hans
Hewel Manfred
Ems-Inventa AG
Nutter Nathan M.
Spencer George H.
Wells Ashley J.
LandOfFree
Amorphous, transparent polyamide compositions and articles havin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amorphous, transparent polyamide compositions and articles havin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amorphous, transparent polyamide compositions and articles havin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1517156