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Diorganopolysiloxanes containing benzotriazole functional groups

Assignee: Rhodia Chimie SAS
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Filing: 1989-08-04
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Granted: 1992-04-07
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Expires: 2009-08-04
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Abstract

Abstract Linear and cyclic diorganopolysiloxanes containing benzotriazole functional groups are well suited for the coating of optical fibers and for lubricating plastics, e.g., PVC.

Inventors

  • 👤 Edith Canivenc
  • 👤 Serge Forestier
  • 👤 Michel Gay
  • 👤 Gerard Lang
  • 👤 Herve Richard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 12:02
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; Y; Y10; Y10T; Y10T428/00; Y10T428/16

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 189 words
A diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) or 2): ##STR14## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 0 to 50, inclusive, with the proviso that, if s is 0, at least one of the two symbols B is A; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t +u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR15## wherein X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 2
Dependent Claim 189 words
A diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) or 2): ##STR14## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 0 to 50, inclusive, with the proviso that, if s is 0, at least one of the two symbols B is A; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t +u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR15## wherein X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 3
Dependent Claim 44 words
The diorganopolysiloxane as defined by claim 1, wherein R is methyl; B is methyl; Y is methyl; p=1; X is a hydrogen atom or methyl; r ranges from 5 to 20; s ranges from 2 to 15; and t+u ranges from 3 to 10.
Claim 4
Dependent Claim 11 words
The diorganopolysiloxane as defined by claim 1, having the formula (1).
Claim 5
Dependent Claim 11 words
The diorganopolysiloxane as defined by claim 1, having the formula (2).
Claim 6
Dependent Claim 12 words
An optical fiber coated with the diorganopolysiloxane as defined by claim 1.
Claim 7
Dependent Claim 15 words
A plastic substrate comprising a lubricating amount of the diorganopolysiloxane as defined by claim 1.
Claim 8
Dependent Claim 23 words
A composition of matter comprising polyvinyl chloride and from 0.001 to 3 parts by weight of the diorganopolysiloxane as defined by claim 1.
Claim 9
Dependent Claim 170 words
A diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) and (2): ##STR16## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 2 to 15, inclusive; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t+u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR17## wherein X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 10
Dependent Claim 170 words
A diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) and (2): ##STR16## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 2 to 15, inclusive; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t+u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR17## wherein X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 11
Independent Claim 202 words
A method for lubricating plastics, comprising adding to a plastic a lubricating amount of a diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) or (2): ##STR18## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 0 to 50, inclusive, with the proviso that, if s is 0, at least one of the two symbols B is A; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t+u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR19## where X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 12
Independent Claim 202 words
A method for lubricating plastics, comprising adding to a plastic a lubricating amount of a diorganopolysiloxane comprising benzotriazole functional groups and having one of the following formulae (1) or (2): ##STR18## in which the symbols R, which may be identical or different, are each a C 1 -C 10 alkyl, phenyl or 3,3,3-trifluoropropyl radical, at least 80% of the number of the radicals R being methyl radicals; the radicals B, which may be identical or different, are each a radical R or a radical A defined below; r is an integer ranging from 0 to 200; s is an integer ranging from 0 to 50, inclusive, with the proviso that, if s is 0, at least one of the two symbols B is A; u is an integer ranging from 1 to 20; t is an integer ranging from 0 to 20; t+u is equal to or greater than 3; and the symbol A is a radical of the formula: ##STR19## where X is a hydrogen atom or a C 1 -C 4 alkyl radical; p is an integer ranging from 1 to 10; and Y is a hydrogen atom or a linear or branched chain C 1 -C 8 alkyl radical.
Claim 13
Dependent Claim 25 words
The method for lubricating plastics as defined by claim 9, wherein said plastic is selected from the group consisting of polyolefins, polyesters, and polyvinyl chloride.
Claim 14
Dependent Claim 35 words
The method for lubricating plastics as defined by claim 9, wherein said lubricating amount of diorganopolysiloxane ranges from 0.001 to 3 parts by weight of the polymer per 100 parts by weight of said plastic.

References Cited (Backward Citations)

US4210578A Cited
GB2077280A Cited
US4316033A Cited
US4349602A Cited
US4868251A Cited
US4859759A Cited
US4960898A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-04-07 1995-10-07 1996-04-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-04-07 1999-10-07 2000-04-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-04-07 2003-10-07 2004-04-07 $7700.00 Window Closed / Lapsed

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