DE2101282A1
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Foamable, finely-divided, non-agglutinating, polystyrene - moulding cpds - by coating the polymer with a water-soluble salt of
Assignee: Huels AG
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Filing: 1971-01-13
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Granted: —
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Expires: 1991-01-13
Abstract
Abstract A styrene (polymer moulding cpd. contg. foaming agent is coated with 0.005 - 0.5% w.r.t. wt. of moulding cpd. of a water-soluble salt of an N-substd. partial amide of a copolymer of an unsatd. aliphatic 4-6C polycarboxylic acid with a 2 - 8C comonomer, the degree of polymn. of the copolymer being 2 - 5000, pref. 50 - 500, e.g. the N,N-dimethyltrimethylenediamine semiamide of a 1 : 1 ethylene/maleic anhydride copolymer. PS foamable cpds. thus treated do not lump together in pre-foaming stage but show good sintering and mechanical strength on subsequent foaming/moulding.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-22 22:07
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08J2325/00; C08J2325/02; C08J2325/04
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