4-methylene-1,3-dioxolanes as cross-linking agents

Details 4-methylene-1,3-dioxolanes as cross-linking agents 4-methylene-1,3-dioxolanes as cross-linking agents

2005-01-18

2005-01-18

Seidleck, James J. (Department: 1711)

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C522S168000, C522S049000, C522S068000, C522S150000, C522S154000, C428S411100, C549S455000, C549S450000, C549S453000, C549S454000, C549S429000, C549S430000, C549S435000

Reexamination Certificate

active

06844375

ABSTRACT:
The invention relates to: 4-methylene-1,3-dioxolanes of the general formula (I)wherein R1 denotes hydrogen, C5-C6-cycloalkyl or C1-C4-alkyl; m and n, which may be the same or different, denote 0 or 1, whereby m≦n, o denotes 2, 3 or 4 depending on the valency of the group X; and X denotes a C—C single bond, straight-chain or branched C1-C18-alkylene, C5-C6-cycloalkylene, C8-C18-arylalkylene, —CH2(OCH2CH2)pOCH2—, —CH2(OCH(CH3)CH2)pOCH2—, wherein p is an integer from 0 to 100; a process for their production; and intermediate products used. Moreover, compositions capable of emission-free, photocationic cross-linking, which comprise 4-methylene-1,3-dioxolanes of the general formula (I) and their use for the production of solvent-resistant and transparent films.

REFERENCES:
patent: 906514 (1954-03-01), None
patent: 724032 (1955-02-01), None
Latvijas PSR Zinatnu Akademijas Vestis, (6), 667-72, 1994. (abstract only).*
ASC abstract No. 52:59140 to Ortho, Hans (corresponds to DE 906514).*
Angewandte Chemie, No. 19/20, (1962), pp. 544-552 (XP-000881967).
XP-002157177; “6001 Chemical Abstracts, Columbus, Ohio, US”; vol. 65, No. 38; 1965.
XP-002157178; “6001 Chemical Abstracts, Columbus, Ohio, US”; vol. 86, No. 15; 1977.
XP-002157179, “6001 Chemical Abstracts, Columbus Ohio, US”; vol. 77, No. 1; 1972.

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