Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers
Linear-chain copolysiloxanes comprising units of the general formulae (1) and (2), [-(R 1 R 2 SiO) a -] (1), [-(R 3 R 4 Si-R 7 -SiR 5 R 6 O) b -R 3 R 4 Si-R 7 -SiR 5 R 6 -] (2), the end-groups of which may be Si-H or Si-OH, are prepared by reacting: (A) diorganopolysiloxanes of the general formula...
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| creator | Egerter, Norbert Muller, Philipp |
| description | Linear-chain copolysiloxanes comprising units of the general formulae (1) and (2),
[-(R
1
R
2
SiO)
a
-] (1),
[-(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
-] (2),
the end-groups of which may be Si-H or Si-OH, are prepared by reacting:
(A) diorganopolysiloxanes of the general formula (3)
HO-(R
1
R
2
SiO)
a
-H (3)
with
(B) silarylenesiloxane compounds of the general formula (4)
H-[(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
]-H (4),
in the presence of (C) a transition metal catalyst, wherein R
1
, and R
2
are optionally substituted and optionally heteroatom-containing hydrocarbon radicals, R
3
, R
4
, R
5
, and R
6
are optionally halogen-substituted and optionally heteroatom-containing aliphatically or aromatically unsaturated C
1-20
hydrocarbon radicals, and R
7
is an aromatic, optionally substituted, and optionally heteroatom-containing divalent hydrocarbon radical. The copolysiloxanes are well defined, and have internal blocks corresponding to the (3) and (4) starting materials, substantially free of rearrangement and equilibration products. |
| format | Patent |
| fullrecord | <record><control><sourceid>uspatents_EFI</sourceid><recordid>TN_cdi_uspatents_applications_20020013441</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>20020013441</sourcerecordid><originalsourceid>FETCH-uspatents_applications_200200134413</originalsourceid><addsrcrecordid>eNrjZPANKMpPTi0uVkjLL1IoyUhVKChKLUgsSizJzM9TyE9TKM7MSSyqzEnNSwWy8isS81J1UzLzi9IT8_JhAgrJ-QX5OZW5qUXFPAysaYk5xam8UJqbQdPNNcTZQ7e0uCCxJDWvpDg-saAgJzMZbH5xvJGBARAZGpuYGBqTohYAkpM-kg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers</title><source>USPTO Published Applications</source><creator>Egerter, Norbert ; Muller, Philipp</creator><creatorcontrib>Egerter, Norbert ; Muller, Philipp</creatorcontrib><description>Linear-chain copolysiloxanes comprising units of the general formulae (1) and (2),
[-(R
1
R
2
SiO)
a
-] (1),
[-(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
-] (2),
the end-groups of which may be Si-H or Si-OH, are prepared by reacting:
(A) diorganopolysiloxanes of the general formula (3)
HO-(R
1
R
2
SiO)
a
-H (3)
with
(B) silarylenesiloxane compounds of the general formula (4)
H-[(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
]-H (4),
in the presence of (C) a transition metal catalyst, wherein R
1
, and R
2
are optionally substituted and optionally heteroatom-containing hydrocarbon radicals, R
3
, R
4
, R
5
, and R
6
are optionally halogen-substituted and optionally heteroatom-containing aliphatically or aromatically unsaturated C
1-20
hydrocarbon radicals, and R
7
is an aromatic, optionally substituted, and optionally heteroatom-containing divalent hydrocarbon radical. The copolysiloxanes are well defined, and have internal blocks corresponding to the (3) and (4) starting materials, substantially free of rearrangement and equilibration products.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020013441$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,869,881,64035</link.rule.ids><linktorsrc>$$Uhttps://patentcenter.uspto.gov/applications/09881388$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Egerter, Norbert</creatorcontrib><creatorcontrib>Muller, Philipp</creatorcontrib><title>Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers</title><description>Linear-chain copolysiloxanes comprising units of the general formulae (1) and (2),
[-(R
1
R
2
SiO)
a
-] (1),
[-(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
-] (2),
the end-groups of which may be Si-H or Si-OH, are prepared by reacting:
(A) diorganopolysiloxanes of the general formula (3)
HO-(R
1
R
2
SiO)
a
-H (3)
with
(B) silarylenesiloxane compounds of the general formula (4)
H-[(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
]-H (4),
in the presence of (C) a transition metal catalyst, wherein R
1
, and R
2
are optionally substituted and optionally heteroatom-containing hydrocarbon radicals, R
3
, R
4
, R
5
, and R
6
are optionally halogen-substituted and optionally heteroatom-containing aliphatically or aromatically unsaturated C
1-20
hydrocarbon radicals, and R
7
is an aromatic, optionally substituted, and optionally heteroatom-containing divalent hydrocarbon radical. The copolysiloxanes are well defined, and have internal blocks corresponding to the (3) and (4) starting materials, substantially free of rearrangement and equilibration products.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFI</sourceid><recordid>eNrjZPANKMpPTi0uVkjLL1IoyUhVKChKLUgsSizJzM9TyE9TKM7MSSyqzEnNSwWy8isS81J1UzLzi9IT8_JhAgrJ-QX5OZW5qUXFPAysaYk5xam8UJqbQdPNNcTZQ7e0uCCxJDWvpDg-saAgJzMZbH5xvJGBARAZGpuYGBqTohYAkpM-kg</recordid><startdate>20020131</startdate><enddate>20020131</enddate><creator>Egerter, Norbert</creator><creator>Muller, Philipp</creator><scope>EFI</scope></search><sort><creationdate>20020131</creationdate><title>Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers</title><author>Egerter, Norbert ; Muller, Philipp</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_applications_200200134413</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Egerter, Norbert</creatorcontrib><creatorcontrib>Muller, Philipp</creatorcontrib><collection>USPTO Published Applications</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Egerter, Norbert</au><au>Muller, Philipp</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers</title><date>2002-01-31</date><risdate>2002</risdate><abstract>Linear-chain copolysiloxanes comprising units of the general formulae (1) and (2),
[-(R
1
R
2
SiO)
a
-] (1),
[-(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
-] (2),
the end-groups of which may be Si-H or Si-OH, are prepared by reacting:
(A) diorganopolysiloxanes of the general formula (3)
HO-(R
1
R
2
SiO)
a
-H (3)
with
(B) silarylenesiloxane compounds of the general formula (4)
H-[(R
3
R
4
Si-R
7
-SiR
5
R
6
O)
b
-R
3
R
4
Si-R
7
-SiR
5
R
6
]-H (4),
in the presence of (C) a transition metal catalyst, wherein R
1
, and R
2
are optionally substituted and optionally heteroatom-containing hydrocarbon radicals, R
3
, R
4
, R
5
, and R
6
are optionally halogen-substituted and optionally heteroatom-containing aliphatically or aromatically unsaturated C
1-20
hydrocarbon radicals, and R
7
is an aromatic, optionally substituted, and optionally heteroatom-containing divalent hydrocarbon radical. The copolysiloxanes are well defined, and have internal blocks corresponding to the (3) and (4) starting materials, substantially free of rearrangement and equilibration products.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_uspatents_applications_20020013441 |
| source | USPTO Published Applications |
| title | Process for the preparation of silarylenesiloxane-diorganosiloxane copolymers |
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