EP0333361A2
Expired / Lapsed
EP
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Silyl 2-amidoacetate and silyl 3-amidopropionate compositions
Assignee: 3M Co
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Filing: 1989-03-06
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Granted: —
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Expires: 2009-03-06
Abstract
Abstract The present invention provides novel silyl 2-amidoacetates and silyl 3-amidopropionates which are the reaction products of azlactone and silanol reactants. The novel products result from nucleophilic addition of a soluble or insoluble, low or high molecular weight reactant containing one or more silanol groups and a soluble or insoluble, low or high molecular weight reactant containing one or more azlactone groups. The reaction products provide for high adhesion between the siliceous and azlactone reactants, as would be useful as protective coatings particularly on silicon-containing materials. It has been recognized in the present invention that silyl 2-amidoacetates and silyl 3-amidopropionates are useful linkages between silanol and azlactone derived materials.
Inventors
- 👤 Stefan A. C/O Minnesota Mining And Babirad
- 👤 Fredrick C/O Minnesota Mining And Bacon
- 👤 Andrew S. Jr. C/O Minnesota Mining And Kuczma
- 👤 Jerald K. C/O Minnesota Mining And Rasmussen
- 👤 Steven M. C/O Minnesota Mining And Heilmann
- 👤 Larry R. C/O Minnesota Mining And Krepski
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/105; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1896; G; G02; G02B; G02B1/00; G02B1/04; G02B1/045; G02B1/105; G02B1/10; G02B1/11; G02B1/111; G02B1/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
16 words
A composition of matter comprising at least one of a silyl 2-amidoacetate and a silyl 3-amidopropionate.
Claim 2
Dependent Claim
16 words
A composition of matter comprising at least one of a silyl 2-amidoacetate and a silyl 3-amidopropionate.
Claim 3
Dependent Claim
187 words
A composition of matter according to claim 1 comprising at least one of a silyl 2-amidoacetate and a silyl 3-amidopropionate having the formula: wherein R¹, R², and R³ are the same or different group and are selected from the class consisting of alkyl and aryl, hydroxy, and silyloxy groups, with the proviso that at most two of the groups are aryl; R⁴ and R⁵ are independently hydrogen or lower alkyl; n is 0 or 1; R⁶ and R⁷ are independently an alkyl or cycloalkyl group, an aryl or aralkyl group, or R⁶ and R⁷ taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, with the proviso that only one of R⁶ and R⁷ can be aryl; G is any polyvalent linking group unreactive with azlactone when m is at least 2, or 6 is any monovalent terminal group unreactive with azlactone when p=m=1; m can have any positive integral value from 1 to p; p can have any positive integral value from 1 to infinity, and optionally a catalytically effective amount of a cyclic amidine.
Claim 4
Dependent Claim
24 words
The composition of matter according to claim 2 wherein at least one of R¹, R², and R³ is a soluble or insoluble silyloxy group.
Claim 5
Dependent Claim
74 words
The composition of matter according to claim 3 wherein said soluble silyloxy group is a polysiloxane group, and wherein said insoluble silyloxy group is a silica network, wherein optionally said silica network is interspersed with interpolymerized oxides of at least one of boron, phosphorus, zirconium, molybdenum, and aluminum or wherein optionally said network structure further comprises at least one atom selected from the group consisting of aluminum, sodium, phosphorus, boron, molybdenum, and magnesium atoms.
Claim 6
Dependent Claim
73 words
The composition of matter according to claims 2 to 4 wherein G comprises at least one functional group selected from the group consisting of alkyl, aryl, amide, ester, nitrile, nitro, sulfoxide, sulfone, azide, isocyanate, isothiocyanate, tertiary amine, ether, urethane, quaternary ammonium and phosphonium, halogen, and the like, wherein the functional groups requiring substituents are substituted with hydrogen where appropriate or lower alkyl so as not to mask the effect of the functional groups.
Claim 7
Dependent Claim
14 words
An optical fiber comprising a composition of matter according to claims 1 to 5.
Claim 8
Dependent Claim
22 words
The optical fiber according to claim 6 wherein said composition is the reaction product of silanol-containing fiber core and an azlactone-containing cladding.
Claim 9
Independent Claim
31 words
A method of preparing a cladded optical fiber according to claims 6 and 7 comprising the step of coating a glass fiber with a composition comprising an azlactone monomer or polymer.
Claim 10
Dependent Claim
35 words
A method for preparing a composition of matter according to claim 1 comprising the step of reacting a silanol and an azlactone, optionally in the presence of a catalytically effective amount of a cyclic amidine.
Claim 11
Dependent Claim
15 words
The method according to claim 9 wherein said azlactone is a monoazlactone or a polyazlactone.
References Cited (Backward Citations)
No citation records indexed.
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