EP0321230A2
Expired / Lapsed
EP
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Improved resin systems for coated products, and method
Assignee: 3M Co
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Filing: 1988-12-14
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Granted: —
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Expires: 2008-12-14
Abstract
Abstract Improved resin/filler compositions for use in forming coated abrasives having a substrate/bonding system/abrasive composite structure, are provided. Also, methods for making such improvements are described. In general, the improvements result from inclusion in the resin/filler composition, a coupling agent providing for bonding between the resin and the filler. Preferred classes of coupling agents comprise: silanes, titanates, and zircoaluminates. Improvements effected by methods according to the present invention concern: viscosity of resulting resin/filler mixtures, retention of filler in suspension with a resin, and improved performance characteristics of products made according to the method, in particular improved resistance to deterioration upon contact with water, or upon use and/or storage in humid environments.
Inventors
- 👤 Carolyn Grace C/O Minnesota Mining And Dewald
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:49
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/34; B24D3/342; B24D3/007; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2107; Y10T442/2115
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
59 words
A coated abrasive article comprising: (a) a substrate backing; (b) abrasive material bound to said substrate backing; and, (c) a bond system adhering said abrasive material to said substrate backing; said bond system comprising: a resinous adhesive and inorganic filler; characterized by a coupling agent in an effective amount to provide bridging association between the adhesive and the filler.
Claim 2
Dependent Claim
59 words
A coated abrasive article comprising: (a) a substrate backing; (b) abrasive material bound to said substrate backing; and, (c) a bond system adhering said abrasive material to said substrate backing; said bond system comprising: a resinous adhesive and inorganic filler; characterized by a coupling agent in an effective amount to provide bridging association between the adhesive and the filler.
Claim 3
Dependent Claim
26 words
An article according to claim 1 further characterized by said coupling agent being selected from the group comprising: silane-, titanate- and zircoaluminte-coupling agents, and mixtures thereof.
Claim 4
Dependent Claim
21 words
An article according to claim 1 further characterized by said filler comprising from about 1-65% of the bond system, by volume
Claim 5
Dependent Claim
22 words
An article according to claim 1 further characterized by said coupling agent comprising from about 0.1-5.0% by weight, of the filler weight.
Claim 6
Dependent Claim
25 words
A coated abrasive article according to claim 1 further characterized by said filler including calcium carbonate therein and, said coupling agent including a zircoaluminate therein.
Claim 7
Dependent Claim
62 words
A coated abrasive article according to claim 1 further characterized by said resinous adhesive being selected from the group comprising: phenolic resins, ureaformaldehyde resins, melamine formaldehyde resins, epoxy resins, acrylate resins, polyester resins, urethane resins, isocyanates, and combinations and mixtures thereof; and said coupling agent is selected from the group comprising: amino silane coupling agents, epoxy silane coupling agents, and mixtures thereof.
Claim 8
Dependent Claim
22 words
A coated abrasive article according to claim 1 further characterized by backing an abrasive layer with a thickness of about 0.01-2.0 mm.
Claim 9
Dependent Claim
67 words
An improved method of preparing a coated abrasive article having a substrate having, an abrasive material bound to the substrate backing, and an inorganic filler/organic resin bonding system adhering the abrasive material to the backing; characterized by including a step of providing a coupling agent in the inorganic filler/organic resin bonding system in an effective amount to provide a bridging association between the adhesive and the filler.
Claim 10
Dependent Claim
67 words
An improved method of preparing a coated abrasive article having a substrate having, an abrasive material bound to the substrate backing, and an inorganic filler/organic resin bonding system adhering the abrasive material to the backing; characterized by including a step of providing a coupling agent in the inorganic filler/organic resin bonding system in an effective amount to provide a bridging association between the adhesive and the filler.
Claim 11
Dependent Claim
27 words
An improved method according to claim 8 further characterized by said coupling agent being selected from the group comprising: silane-, titanate- and zircoaluminate-coupling agents, and mixtures thereof.
Claim 12
Dependent Claim
23 words
An improved method according to claim 9 further characterized by said coupling agent comprising from about 0.1-5.0% by weight, of the filler weight.
References Cited (Backward Citations)
No citation records indexed.
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