Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1998-10-30
1999-11-23
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528336, 528338, 528339, 528340, 528344, 528347, C08G 6926, C08G 6928
Patent
active
059902701
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.
patent: 5245005 (1993-09-01), Schwier 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.
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