Chemical blowing agent and thermally expandable thermoplastic composition
US-2017342230-A1 · Nov 30, 2017 · US
US9656952B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9656952-B2 |
| Application number | US-201414906759-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 22, 2014 |
| Priority date | Jul 25, 2013 |
| Publication date | May 23, 2017 |
| Grant date | May 23, 2017 |
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A reaction accelerator is provided which is used in a reaction of a compound including an isocyanate group that is not directly bonded to an aromatic ring in a molecule with a compound including an active hydrogen-containing group and is formed of a compound including a halogenated carbamoyl group. A production method is provided which includes reacting a compound including an isocyanate group that is not directly bonded to an aromatic ring in a molecule with a compound including an active hydrogen-containing group to produce a urethane compound, a thiourethane compound, an amide compound or a urea compound, in which the reaction is performed in the presence of the reaction accelerator.
Opening claim text (preview).
The invention claimed is: 1. A reaction accelerator, wherein the reaction accelerator is used in a reaction of a compound comprising an isocyanate group in a molecule, in which the isocyanate group is not directly bonded to an aromatic ring, with a compound including an active hydrogen-containing group, and the reaction accelerator is a compound including a halogenated carbamoyl group and a (meth)acryloyl group. 2. The reaction accelerator according to claim 1 , wherein the reaction is a reaction that generates a urethane compound, a thiourethane compound, an amide compound or a urea compound. 3. The reaction accelerator according to claim 1 , wherein the compound comprising an isocyanate group that is not directly bonded to an aromatic ring in a molecule is at least one selected from a group consisting of hexamethylene diisocyanate, trimethyl hexamethylene diisocyanate, lysine diisocyanate, norbornane diisocyanate, trans-cyclohexane-1,4-diisocyanate, isophorone diisocyanate, bis(isocyanate methyl) cyclohexane, dicyclohexylmethane diisocyanate, dimer acid diisocyanate, m-xylene diisocyanate, m-tetramethylxylene diisocyanate, other diisocyanate compounds represented by the general formula OCN—R—NCO (R represents a divalent aliphatic residue having 1 to 20 carbon atoms), methacroyl isocyanate, 3-isopropenyl-α,α-dimethylbenzyl isocyanate, 3-isocyanatepropyl trimethoxysilane, methacryloyloxyethyl isocyanate, acryloyloxyethyl isocyanate, 1,1-(bisacryloyloxymethyl) ethyl isocyanate, methacryloyloxyethoxyethyl isocyanate, acryloyloxyethoxyethyl isocyanate, and other monoisocyanate compounds represented by the general formula R″—NCO (R″ represents a monovalent aliphatic residue having 1 to 20 carbon atoms). 4. The reaction accelerator according to claim 1 , wherein the active hydrogen-containing group is a hydroxyl group, a mercapto group, a carbonyl group, or an amino group. 5. The reaction accelerator according to claim 1 , wherein the accelerator is a compound represented by the following general formula (I-1) or (I-2) wherein, in the formulae, R 1 and R 2 each independently represent a hydrogen atom or a methyl group, R 3 represents an alkylene group which may include a substituent and has 1 to 10 carbon atoms or a group formed by substituting a single bond between carbon atoms of the alkylene group with a bond selected from a group consisting of an ether bond, an ester bond and a phenylene bond, X represents a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, and two R 1 's in the formula (I-2) may be the same as or different from each other and two R 3 's may be the same as or different from each other. 6. A production method comprising: reacting a compound including an isocyanate group that is not directly bonded to an aromatic ring in a molecule with a compound including an active hydrogen-containing group to produce a urethane compound, a thiourethane compound, an amide compound or a urea compound, wherein the reaction is performed in the presence of the reaction accelerator according to claim 1 . 7. The reaction accelerator according to claim 2 , wherein the compound comprising an isocyanate group that is not directly bonded to an aromatic ring in a molecule is at least one selected from a group consisting of hexamethylene diisocyanate, trimethyl hexamethylene diisocyanate, lysine diisocyanate, norbornane diisocyanate, trans-cyclohexane-1,4-diisocyanate, isophorone diisocyanate, bis(isocyanate methyl) cyclohexane, dicyclohexylmethane diisocyanate, dimer acid diisocyanate, m-xylene diisocyanate, m-tetramethylxylene diisocyanate, other diisocyanate compounds represented by the general formula OCN—R—NCO (R represents a divalent aliphatic residue having 1 to 20 carbon atoms), methacroyl isocyanate, 3-isopropenyl-α,α-dimethylbenzyl isocyanate, 3-isocyanatepropyl trimethoxysilane, methacryloyloxyethyl isocyanate, acryloyloxyethyl isocyanate, 1,1-(bisacryloyloxymethyl) ethyl isocyanate, methacryloyloxyethoxyethyl isocyanate, acryloyloxyethoxyethyl isocyanate, and other monoisocyanate compounds represented by the general formula R″—NCO (R″ represents a monovalent aliphatic residue having 1 to 20 carbon atoms).
Ureas (R2N-C(=O)-NR2) · CPC title
of R2C=O or R2C=NR (R= C, H) · CPC title
from compounds not provided for in groups C07C231/02 - C07C231/08 · CPC title
containing oxygen in addition to the carboxy oxygen {, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate} · CPC title
also containing elements or functional groups covered by B01J31/0201 - B01J31/0231 · CPC title
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