Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-05-09
2006-05-09
Choi, Ling-Sui (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S343000, C525S353000
Reexamination Certificate
active
07041744
ABSTRACT:
The present invention relates to a method for cross-linking a polymer article which comprises a cross-linkable polymer with hydrolyzable silane groups and a crystallinity level of at least 30%. The cross-linking is performed in the presence of a silanol condensation catalyst comprising a compound of formula (I): ArSO3H or a precursor thereof, Ar being a hydrocarbyl substituted aromatic group comprising at least 14 carbon atoms.
REFERENCES:
patent: 4446283 (1984-05-01), Doi et al.
patent: 4618645 (1986-10-01), Bauman et al.
patent: 6005055 (1999-12-01), Dammert et al.
Birley et al., Plastics Materials-properties and applications, 2ndEdition, Blackie & Son Limited (1988).
Ek Carl-Gustaf
Palmlöf Magnus
Rohne Gunhild
Borealis Technology Oy
Choi Ling-Sui
Fay Sharpe Fagan Minnich & McKee LLP
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