Polymerisation initiators, polymerisable compositions, and...

Details Polymerisation initiators, polymerisable compositions, and... Polymerisation initiators, polymerisable compositions, and...

2007-09-11

2007-09-11

Kiliman, Leszek B. (Department: 1773)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C428S522000, C524S853000, C526S213000, C526S217000, C526S317100, C526S319000, C156S331100

Reexamination Certificate

active

11003959

ABSTRACT:
Quaternary boron salts are used as initiators of polymerisation in adhesive compositions for bonding low surface energy substrates such as polyolefins. The quaternary boron salts are of the formula Iwherein R1is C1–C10alkyl,R2, R3and R4, which may be the same or different, are, C1–C10alkyl or C3–C10cycloalkyl, phenyl, or phenyl-substituted C1–C10alkyl or C3–C10cycloalkyl, provided that any two of R1–R4may optionally be part of a carbocyclic ring, andM+is a metal ion or a quaternary ammonium ion.Particular examples of initiator compounds include sodium tetraethyl borate and lithium tetraethyl borate, lithium phenyl triethyl borate and tetraethylammonium phenyl triethyl borate.

REFERENCES:
patent: 5866631 (1999-02-01), Nakagawa et al.
patent: 5935711 (1999-08-01), Pocius et al.
patent: 6939932 (2005-09-01), Kneafsey et al.

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