Patent US413520A successfully refreshed from Google Patents.
US5456975A
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US
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Curl resistant coated abrasive backing with radiation curable cloth finishing additive
Assignee: Saint Gobain Abrasives Inc
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Filing: 1991-04-03
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Granted: 1995-10-10
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Expires: 2011-04-03
Abstract
Abstract This invention relates to the construction of backings for coated abrasive products that avoid curling tendencies during adhesive curing and subsequent steps. Curling of the backing is discouraged by the utilization of at least one finishing material carried by said fabric which comprises the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component. These components are caused to react with one another to form cross linking when exposed to actinic or electron beam radiation.
Inventors
- 👤 Eugene Zador
- 👤 Dhiraj H. Darjee
- 👤 Stanley J. Supkis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:25
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; B; B24; B24D; B24D11/00; B24D11/001; B24D11/005; B24D3/00; C08; C08F; C08F290/00; C08F290/02; C08F290/06; C08F290/067; C08F290/08; C08F290/14; C08F290/147; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2107; Y10T442/2115; Y10T442/2738
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
49 words
A coated fabric for use in preparing a coated abrasive product comprising: a. a fabric; and b. at least one finishing material carried by said fabric, said finishing material including the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component.
Claim 2
Dependent Claim
49 words
A coated fabric for use in preparing a coated abrasive product comprising: a. a fabric; and b. at least one finishing material carried by said fabric, said finishing material including the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component.
Claim 3
Dependent Claim
17 words
The coated fabric as recited in claim 1 wherein said carboxyfunctional monomer is a beta carboxyethyl acrylate.
Claim 4
Dependent Claim
23 words
The coated fabric as recited in claim 1 wherein said finishing material has been cured by exposure to actinic or electron beam radiation.
Claim 5
Dependent Claim
29 words
The coated fabric as recited in claim 1 wherein the components of said finishing material are capable of rapid polymerization under the influence of actinic or electron beam radiation.
Claim 6
Dependent Claim
62 words
The coated fabric as recited in claim 1 wherein, after application of said finishing material in liquid form to said fabric, said backing has been heat treated to temperatures between 150° degrees F. (66° C.) and 250° degrees F. (121° C.) for a time sufficient to solidify said finishing material, whereby curl of said backing by more than five degrees is prevented.
Claim 7
Dependent Claim
19 words
The coated fabric as recited in claim 1 wherein said finishing material acts as a backfill or backsizing adhesive.
Claim 8
Dependent Claim
34 words
The coated fabric as recited in claim 1 wherein said fabric contains yarns selected from the group consisting of: 1) polyethylene terephthalate yarns and 2) a mixture of polyethylene terephthalate and nylon polyamide yarns.
Claim 9
Dependent Claim
14 words
A coated fabric according to claim 1, wherein said fabric is of woven construction.
Claim 10
Dependent Claim
14 words
A coated fabric according to claim 1, wherein said fabric is of stitchbonded construction.
Claim 11
Dependent Claim
22 words
A coated fabric according to claim 8, wherein said fabric is selected from the group consisting of jeans, drills and sateen fabrics.
Claim 12
Dependent Claim
113 words
A backing according to claim 9, wherein said fabric is a stitch bonded fabric comprising: (a) an array of straight warp yarns having an array tensile strength of at least 30 dekanewtons per centimeter of fabric width; (b) an array of straight fill yarns disposed on one side of said array and having a cover factor of at least 40%; and (c) a plurality of stitch yarns, each such yarn having a tensile breaking strength of at least 0.5 dekanewtons, formed in loops around groups of individual yarn members of said arrays of straight warp yarns and straight fill yarns, whereby the two said arrays of yarns are bonded into a coherent fabric.
Claim 13
Dependent Claim
35 words
A coated fabric according to claim 2, wherein said hexafunctional acrylated urethane oligomer and carboxyfunctional monomer together comprise at least 40% by weight of the fluid ingredients in said finishing material prior to their interaction.
Claim 14
Dependent Claim
35 words
A coating fabric according to claim 11, wherein said hexafunctional acrylated urethane oligomer and carboxyfunctional monomer together comprise at least 40% by weight of the fluid ingredients in said finishing material prior to their interaction.
Claim 15
Dependent Claim
99 words
A process for fabricating the coated fabric of claim 1, said process comprising: a. applying to a fabric a fluid adhesive which includes an unsaturated hexafunctional urethane oligomer component and an unsaturated carboxyfunctional monomer component; and b. subsequently solidifying said adhesive by exposing said fabric and adhesive to actinic or electron beam radiation thereby causing cross-linking between said components, whereby said process provides a coated fabric which is used to prepare a coated abrasive backing having improved chemical adhesion and which curls less than five degrees at its edges after being subjected to said applying and said solidifying steps.
Claim 16
Dependent Claim
16 words
A process according to claim 14, wherein said fabric consists essentially of yarns of polyethylene terephthalate.
Claim 17
Dependent Claim
49 words
A coated fabric for use in preparing a coated abrasive comprising: a. a saturated fabric; and b. at least one finishing material carried by said fabric, said finishing material including the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component.
Claim 18
Dependent Claim
49 words
A coated fabric for use in preparing a coated abrasive comprising: a. a saturated fabric; and b. at least one finishing material carried by said fabric, said finishing material including the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component.
Claim 19
Dependent Claim
15 words
The coated fabric of claim 16, wherein said carboxyfunctional monomer is a beta carboxyethyl acrylate.
Claim 20
Dependent Claim
34 words
The coated fabric of claim 17, wherein said hexafunctional acrylated urethane oligomer and carboxyfunctional monomer together comprise at least 40% by weight of the fluid ingredients in said finishing material prior to their interaction.
Claim 21
Dependent Claim
21 words
The coated fabric of claim 16, wherein said finishing material has been cured by exposure to actinic or electron beam radiation.
Claim 22
Dependent Claim
27 words
The coated fabric of claim 16, wherein the components of said finishing material are capable of rapid polymerization under the influence of actinic or electron beam radiation.
Claim 23
Dependent Claim
57 words
The coated fabric of claim 16, wherein after application of said finishing material in liquid form to said fabric, said backing has been treated to temperatures between 150° F. (66° C.) and 250° F. (121° C.) for a time sufficient to solidify said finishing material, whereby curl of said backing by more than five degrees is prevented.
Claim 24
Dependent Claim
16 words
The coated fabric of claim 16, wherein said finishing material is a backfill or backsizing adhesive.
Claim 25
Dependent Claim
32 words
The coated fabric of claim 16, wherein said fabric contains yarns selected from the group consisting of (i) polyethylene terephthalate yarns and (ii) a mixture of polyethylene terephthalate and nylon polyamide yarns.
Claim 26
Dependent Claim
13 words
The coated fabric of claim 16, wherein said fabric is of woven construction.
Claim 27
Dependent Claim
21 words
The coated fabric of claim 24, wherein said fabric is selected from the group consisting of jeans, drills, and sateen fabrics.
Claim 28
Dependent Claim
13 words
The coated fabric of claim 16, wherein said fabric is of stitchbonded construction.
Claim 29
Dependent Claim
112 words
The coated fabric of claim 26, wherein said fabric is a stitchbonded fabric comprising: (a) an array of straight warp yarns having an array tensile strength of at least 30 dekanewtons per centimeter of fabric width; (b) an array of straight fill yarns disposed on one side of said array and having a cover factor of at least 40%; and (c) a plurality of stitch yarns, each such yarn having a tensile breaking strength of at least 0.5 dekanewtons, formed in loops around groups of individual yarn members of said arrays of straight warp yarns and straight fill yarns, whereby the two said arrays of yarns are bonded into a coherent fabric.
Claim 30
Dependent Claim
34 words
The coated fabric of claim 27, wherein said hexafunctional acrylated urethane oligomer and carboxyfunctional monomer together comprise at least 40% by weight of the fluid ingredients in said finishing material prior to their interaction.
Claim 31
Dependent Claim
102 words
A process for fabricating the coated fabric of claim 16, said process comprising: a. applying to a saturated fabric a fluid adhesive which includes an unsaturated hexafunctional urethane oligomer component and an unsaturated carboxyfunctional monomer component; and b. subsequently solidifying said adhesive by exposing said fabric and adhesive to actinic or electron beam radiation thereby causing cross-linking between said components, whereby said process provides a coated fabric which is used to prepare a coated abrasive backing having improved chemical adhesion and wherein the coated fabric curls less than five degrees at its edges after being subjected to said applying and solidifying steps.
Claim 32
Dependent Claim
15 words
The process of claim 29, wherein said fabric consists essentially of yarns of poly(ethylene terephthalate.)
Claim 33
Dependent Claim
86 words
In a coated fabric for use in preparing a coated abrasive product comprising a fabric having edges and a cloth finishing adhesive that is the cured product of a formulation which (i) contains chemical unsaturation and (ii) is cured by exposure to actinic or electron beam radiation, the improvement comprising after curing of the formulation heating said coated fabric to a sufficiently high temperature and for a sufficient period of time which are sufficient to prevent curling of the edges by more than about five degrees.
Claim 34
Dependent Claim
86 words
In a coated fabric for use in preparing a coated abrasive product comprising a fabric having edges and a cloth finishing adhesive that is the cured product of a formulation which (i) contains chemical unsaturation and (ii) is cured by exposure to actinic or electron beam radiation, the improvement comprising after curing of the formulation heating said coated fabric to a sufficiently high temperature and for a sufficient period of time which are sufficient to prevent curling of the edges by more than about five degrees.
Claim 35
Dependent Claim
17 words
The coated fabric of claim 31, wherein said textile fabric consists essentially of yarns of poly(ethylene terephthalate.)
Claim 36
Dependent Claim
113 words
The coated fabric of claim 31, wherein said textile fabric is a stitchbonded fabric comprising: (a) an array of straight warp yarns having an array tensile strength of at least 30 dekanewtons per centimeter of fabric width; (b) an array of straight fill yarns disposed on one side of said array and having a cover factor of at least 40%; and (c) a plurality of stitch yarns, each such yarn having a tensile breaking strength of at least 0.5 dekanewtons, formed in loops around groups of individual yarn members of said arrays of straight warp yarns and straight fill yarns, whereby the two said arrays of yarns are bonded into a coherent fabric.
Claim 37
Dependent Claim
24 words
The coated fabric of claim 31 wherein said heating is for at least five hours and at a temperature of at least 121° C.
Claim 38
Dependent Claim
38 words
The coated fabric of claim 31, wherein after said heating step the fabric is further coated with aqt least one additional cloth finishing adhesive which is cured and wherein the edge curl remains less than about five degrees.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |