Moisture curable organopolysiloxane composition
US-9527959-B2 · Dec 27, 2016 · US
Polymer containing silane groups
US9765177B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9765177-B2 |
| Application number | US-201314398584-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 22, 2013 |
| Priority date | May 23, 2012 |
| Publication date | Sep 19, 2017 |
| Grant date | Sep 19, 2017 |
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Abstract
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Methods for producing a polymer with end groups of formula (I), which is free of isocyanate groups, wherein at least one hydrosilane of formula (II) is reacted with at least one polyurethane polymer containing isocyanate groups, where R 1 stands for an alkyl group having 1 to 12 C atoms, R 2 stands for a hydrogen atom or for an alkyl group having 1 to 12 C atoms, which optionally comprises ether oxygen or amine nitrogen, R 3 stands for a linear or a branched alkylene or cycloalkylene residue having 1 to 20 C atoms, optionally with aromatic parts, and optionally with one or more heteroatoms, R 4 stands for an alkyl group having 1 to 6 C atoms, R 5 stands for an alkyl group having 1 to 10 C atoms, which optionally comprises one or more ether oxygens, n stands for 2 or 3 or 4, and x stands for 0 or 1.
First claim
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The invention claimed is: 1. Method for producing a polymer with end groups of formula (I), which is free of isocyanate groups, where: R 1 stands for an alkyl group having 1 to 12 C atoms, R 2 stands for a hydrogen atom or for an alkyl group having 1 to 12 C atoms, which optionally comprises ether oxygen or amine nitrogen, R 3 stands for a linear or a branched alkylene or cycloalkylene residue having 1 to 12 C atoms, optionally with aromatic parts, and optionally with one or more heteroatoms, R 4 stands for an alkyl group having 1 to 6 C atoms, R 5 stands for an alkyl group having 1 to 10 C atoms, which optionally comprises one or more ether oxygens, n stands for 2 or 3 or 4 , and x stands for 0 or 1, wherein at least one hydrosilane of formula (II) is reacted with at least one polyurethane polymer containing isocyanate groups, where: R 1 stands for an alkyl group having 1 to 12 C atoms, R 2 stands for a hydrogen atom or for an alkyl group having 1 to 12 C atoms, which optionally comprises ether oxygen or amine nitrogen, R 3 stands for a linear or a branched alkylene or cycloalkylene residue having 1 to 20 C atoms, optionally with aromatic parts, and optionally with one or more heteroatoms, R 4 stands for an alkyl group having 1 to 6 C atoms, R 5 stands for an alkyl group having 1 to 10 C atoms, which optionally comprises one or more ether oxygens, n stands for 2 or 3 or 4, and x stands for 0 or 1. 2. Method according to claim 1 , wherein the residue R 1 in formula (I) stands for a residue R 1a , where R 1a stands for n-butyl, n-pentyl, n-hexyl, n-heptyl or n-octyl. 3. Method according to claim 1 , wherein the residue R 3 in formula (I) is selected from the group consisting of 1,3-propylene, 2-methyl-1,3-propylene, 1,4-butylene, 3-methyl-1,4-butylene and 3,3-dimethyl-1,4-butylene. 4. Method according to claim 1 , wherein x in formula (I) stands for 0. 5. Method according to claim 1 , wherein the polymer with end groups of formula (I) has a molecular weight in the range from 1000 to 30,000 g/mol. 6. Method according to claim 1 , wherein the polymer with end groups of formula (I) comprises polyoxyalkylene units. 7. Method according to claim 1 , wherein the end groups of formula (I) are bound to cycloaliphatic residues. 8. Method according to claim 1 , wherein the polymer with end groups of formula (I) has 1 to 4 end groups of formula (I).
Assignees
Inventors
Classifications
- C08G18/837Primary
by silicon containing compounds · CPC title
containing silicon · CPC title
from polyethers · CPC title
containing silicon · CPC title
Nitrogen containing compounds · CPC title
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- What does patent US9765177B2 cover?
- Methods for producing a polymer with end groups of formula (I), which is free of isocyanate groups, wherein at least one hydrosilane of formula (II) is reacted with at least one polyurethane polymer containing isocyanate groups, where R 1 stands for an alkyl group having 1 to 12 C atoms, R 2 stands for a hydrogen atom or for an alkyl grou…
- Who is the assignee on this patent?
- Sika Tech Ag
- What technology area does this patent fall under?
- Primary CPC classification C08G18/837. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).