Flame-retardant latex foams

Details Flame-retardant latex foams Flame-retardant latex foams

1987-05-04

1988-02-02

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 54, 521 82, 521 841, 521 85, 521 92, 521 95, 521907, C08J 928

Patent

active

047229454

ABSTRACT:
A flame-retardant latex foam contains at least 35 (and preferably 40 to 55) parts by weight of an expandable graphite per hundred parts by weight of latex. Additional flame-retardant materials (e.g. hydrated aluminas, magnesium hydroxide, compounds of halogen and/or phosphorus, boron compounds, antimony oxides or melamine) can be included in the foam formulation, as can fillers or intumescent agents. The expandable graphite contains one or more exfoliating agents such that considerable expansion will occur at high temperatures. Foams according to the present invention satisfy the conditions of British Standard Specification Nos. 5852; Part 2; 1982 and 4735; 1974.

REFERENCES:
patent: 3574644 (1971-04-01), Olstowski et al.
patent: 3975200 (1976-08-01), Takashima
patent: 4151126 (1979-04-01), Adelman et al.
patent: 4529742 (1985-07-01), Von Bonin et al.
patent: 4530949 (1985-07-01), Atkinson et al.
United Kingdom Search Report.
EPO Search Report.

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