POLYFLUOROALKYL ALLYL COMPOUND AND METHOD FOR PRODUCING THE SAME
申请人:UNIMATEC CO., LTD.
公开号:US20170291865A1
公开(公告)日:2017-10-12
A polyfluoroalkyl allyl compound represented by the general formula:
CF
3
(CF
2
)
n
(CH
2
CF
2
)
a
(CF
2
CF
2
)
b
CH
2
CH═CH
2
[I]
(n: 0 to 5, a: 1 or 2, b: 0 to 3). The polyfluoroalkyl allyl compound is produced by reacting a carboxylic acid allyl adduct represented by the general formula:
CF
3
(CF
2
)
n
(CH
2
CF
2
)
a
(CF
2
CF
2
)
b
CH
2
CHICH
2
OCOR′ [II]
(n, a, and b are as defined above, and R′: a C
1
-C
3
alkyl group) with a transition metal. This method for producing provides a polyfluoroalkyl allyl compound used as a synthetic intermediate for a fluorine-containing alkylsilane compound that can remove free iodine derived from the raw material compound, before a hydrosilylation reaction is performed, without using a metal reagent having a high environmental impact, and that has excellent handling properties.
Provided herein is a self-etching dental adhesive that exhibits excellent adhesiveness not only to dentin untreated by phosphoric acid etching, but to dentin treated by phosphoric acid etching. The present invention relates to a dental adhesive containing a (meth)acrylamide compound (a), an asymmetric acrylamide-methacrylic acid ester compound (b), and an acid group-containing (meth)acrylic polymerizable monomer (c). The (meth)acrylamide compound (a) is at least one selected from the group consisting of compounds represented by general formula (1), and compounds represented by general formula (2). The asymmetric acrylamide-methacrylic acid ester compound (b) is a compound represented by general formula (3).
(In the formulae, the meanings of the symbols are omitted.)
Organic polymers having water contact angles of 20° or smaller, preferably 7° or smaller and equipped with both high wettability and high transparency. The organic polymers may contain as partial structures polar structures of about 3 debyes or higher in dipole moment and are available especially from polymerization of polymerizable compounds having alkylene(thio)urea structures.
Internal release agent, composition including internal release agent, and process for producing a plastic lens using same composition
申请人:MITSUI CHEMICALS, INC.
公开号:US10239239B2
公开(公告)日:2019-03-26
An internal release agent includes at least one phosphodiester represented by the following general formula (1).
In the formula, R1 and R2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group, and R3 represents an alkylene group having 2 to 4 carbon atoms. A plurality of R3's may be the same as or different from each other. M represents a hydrogen atom, an ammonium ion, an alkali metal ion, or a monovalent/divalent alkali earth metal ion, and n is an integer of 1 to 60.
[EN] CURABLE COMPOSITIONS FOR ONE DROP SEALANT APPLICATIONS<br/>[FR] COMPOSITIONS DURCISSABLES POUR L'APPLICATION D'UN PRODUIT D'ÉTANCHÉITÉ À REMPLISSAGE PAR GOUTTE UNIQUE
申请人:HENKEL IP & HOLDING GMBH
公开号:WO2018213695A1
公开(公告)日:2018-11-22
The present invention relates to resins useful in adhesive and sealant compositions and particularly as one drop fill sealants for liquid crystal applications. In particular, the present invention permits assembly of LCD panels without migration of the sealant resin into the liquid crystal or vice versa during LCD assembly and/or curing of the resin.