US4774937A — Curable resin coated sheet having reduced tack

Claim 1

Independent Claim 50 words

An article comprising adjacent layers of a pre-lubricated, curable resin-coated sheet wherein an exposed major surface of the sheet exhibits a kinetic coefficient of friction of less than about 1.2 and wherein the resin in not appreciably dispersible in water and the adjacent layers are laminatable after immersion in water.

Claim 2

Dependent Claim 50 words

An article comprising adjacent layers of a pre-lubricated, curable resin-coated sheet wherein an exposed major surface of the sheet exhibits a kinetic coefficient of friction of less than about 1.2 and wherein the resin in not appreciably dispersible in water and the adjacent layers are laminatable after immersion in water.

Claim 3

Dependent Claim 116 words

An orthopedic support material comprising a curable resin-coated sheet having a lubricant at an exposed major surface of the resin-coated sheet, wherein said lubricant is comprised of: (a) hydrophilic groups which are covalently bonded to the curable resin, or (b) an additive which forms a layer on the surface of the curable resin, or (c) a combination of (a) and (b); and wherein during curing said lubricant is present in an amount such that the kinetic coefficient of friction of the exposed major surface of the resin-coated sheet is less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-coated sheet are laminatable after immersion in water.

Claim 4

Dependent Claim 116 words

An orthopedic support material comprising a curable resin-coated sheet having a lubricant at an exposed major surface of the resin-coated sheet, wherein said lubricant is comprised of: (a) hydrophilic groups which are covalently bonded to the curable resin, or (b) an additive which forms a layer on the surface of the curable resin, or (c) a combination of (a) and (b); and wherein during curing said lubricant is present in an amount such that the kinetic coefficient of friction of the exposed major surface of the resin-coated sheet is less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-coated sheet are laminatable after immersion in water.

Claim 5

Dependent Claim 57 words

An orthopedic article comprising a sheet impregnated with a pre-lubricated, curable and crosslinkable resin, wherein an exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 6

Dependent Claim 57 words

An orthopedic article comprising a sheet impregnated with a pre-lubricated, curable and crosslinkable resin, wherein an exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 7

Dependent Claim 87 words

An orthopedic article in accordance with claim 3 wherein said pre-lubricated resin comprises a lubricant at the exposed major surface of the resin-impregnated sheet, said lubricant comprising: (a) hydrophilic groups which are covalently bonded to the curable resin, or (b) an additive which is incompatible with the curable resin, or (c) a combination of (a) and (b); and wherein said lubricant is present in an amount such that the kinetic coefficient of friction of the exposed major surface of the resin-impregnated sheet is less than about 1.2.

Claim 8

Dependent Claim 29 words

An orthopedic article in accordance with claim 4 wherein said lubricant comprises hydrophilic groups which are covalently bound to the curable resin, said hydrophilic groups comprising polyethylene oxide groups.

Claim 9

Dependent Claim 22 words

An orthopedic article in accordance with claim 5 wherein said polyethylene oxide comprises less than about 15% by weight of said resin.

Claim 10

Dependent Claim 22 words

An orthopedic article in accordance with claim 5 wherein said polyethylene oxide comprises less than about 10% by weight of said resin.

Claim 11

Dependent Claim 22 words

An orthopedic article in accordance with claim 5 wherein said polyethylene oxide comprises less than about 6% by weight of said resin.

Claim 12

Dependent Claim 22 words

An orthopedic article in accordance with claim 5 wherein said polyethylene oxide comprises about 3% to 4% by weight of said resin.

Claim 13

Dependent Claim 14 words

An orthopedic article in accordance with claim 4 wherein the curable resin is water-curable.

Claim 14

Dependent Claim 16 words

An orthopedic article in accordance with claim 10 wherein the water-curable resin is an isocyanate-functional prepolymer.

Claim 15

Dependent Claim 16 words

An orthopedic article in accordance with claim 10 wherein the water-curable resin comprises a polyurethane prepolymer.

Claim 16

Dependent Claim 16 words

An orthopedic article in accordance with claim 10 wherein the water-curable resin comprises a cyanoacrylate ester.

Claim 17

Dependent Claim 16 words

An orthopedic article in accordance with claim 10 wherein the water-curable resin comprises an epoxy resin.

Claim 18

Dependent Claim 24 words

An orthopedic article in accordance with claim 10 wherein the water-curable resin comprises a prepolymer terminated at its ends with trialkoxy-silane or trihalo-silane groups.

Claim 19

Dependent Claim 47 words

An orthopedic article in accordance with claim 3 wherein said pre-lubricated resin comprises an additive selected from the group consisting of: (i) a surfactant, (ii) a polymer comprised of a plurality of hydrophilic groups, (iii) a polysiloxane, and (iv) mixtures of any of (i), (ii), and (iii).

Claim 20

Dependent Claim 20 words

An orthopedic article in accordance with claim 16 wherein the additive comprises a polymer having a plurality of hydrophilic groups.

Claim 21

Dependent Claim 16 words

An orthopedic article in accordance with claim 17 wherein said polymer additive comprises polyethylene oxide groups.

Claim 22

Dependent Claim 22 words

An orthopedic article in accordance with claim 18 wherein said polyethylene oxide comprises less than about 15% by weight of said resin.

Claim 23

Dependent Claim 22 words

An orthopedic article in accordance with claim 18 wherein said polyethylene oxide comprises less than about 10% by weight of said resin.

Claim 24

Dependent Claim 22 words

An orthopedic article in accordance with claim 18 wherein said polyethylene oxide comprises less than about 6% by weight of said resin.

Claim 25

Dependent Claim 22 words

An orthopedic article in accordance with claim 18 wherein said polyethylene oxide comprises about 3% to 4% by weight of said resin.

Claim 26

Dependent Claim 14 words

An orthopedic article in accordance with claim 16 wherein the additive comprises a polysiloxane.

Claim 27

Dependent Claim 47 words

An orthopedic article in accordance with claim 23 wherein said polysiloxane additive is deposited as a layer on said exposed major surface of said resin-impregnated sheet in an amount sufficient to impart a kinetic coefficient of friction of less than about 1.2 to said exposed major surface.

Claim 28

Dependent Claim 34 words

An orthopedic article in accordance with claim 24 wherein said polysiloxane layer is deposited on said exposed major surface in an amount of from about 0.9 g/m 2 to about 9 g/m 2 .

Claim 29

Dependent Claim 34 words

An orthopedic article in accordance with claim 24 wherein said polysiloxane layer is deposited on said exposed major surface in an amount of from about 1.8 g/m 2 to about 5.4 g/m 2 .

Claim 30

Dependent Claim 20 words

An orthopedic article in accordance with claim 23 wherein the polysiloxane has a viscosity of at least about 50 cs.

Claim 31

Dependent Claim 14 words

An orthopedic article in accordance with claim 16 wherein the additive comprises a polydimethylsiloxane.

Claim 32

Dependent Claim 14 words

An orthopedic article in accordance with claim 16 wherein the additive comprises a surfactant.

Claim 33

Dependent Claim 19 words

An orthopedic article in accordance with claim 29 wherein the surfactant is an alkyl, aryl, or aralkyl ionic compound.

Claim 34

Dependent Claim 15 words

An orthopedic article in accordance with claim 29 wherein the surfactant is a polyethoxylated surfactant.

Claim 35

Dependent Claim 15 words

An orthopedic article in accordance with claim 31 wherein the polyethoxylated surfactant additive is nonionic.

Claim 36

Dependent Claim 19 words

An orthopedic article in accordance with claim 32 wherein the polyethoxylated surfactant additive is a solid at ambient temperatures.

Claim 37

Dependent Claim 15 words

An orthopedic article in accordance with claim 3 wherein the sheet comprises a fiberglass fabric.

Claim 38

Dependent Claim 20 words

An orthopedic article in accordance with claim 34 wherein the fiberglass fabric is an extensible, heat set, knit fiberglass fabric.

Claim 39

Dependent Claim 25 words

An orthopedic article in accordance with claim 34 wherein the curable resin comprises a water-curable, isocyanate-functional prepolymer which is a derivative of an aromatic polyisocyanate.

Claim 40

Dependent Claim 15 words

An orthopedic article in accordance with claim 3 wherein the sheet comprises a nonnwoven fabric.

Claim 41

Dependent Claim 15 words

An orthopedic article in accordance with claim 3 wherein the sheet comprises a woven fabric.

Claim 42

Dependent Claim 15 words

An orthopedic article in accordance with claim 3 wherein the sheet comprises a knit fabric.

Claim 43

Dependent Claim 13 words

An orthopedic article in accordance with claim 3 wherein the resin is cured.

Claim 44

Dependent Claim 26 words

An orthopedic article in accordance with claim 3 wherein after immersion in water at least about 70% of said resin is retained in said resin-impregnated sheet.

Claim 45

Dependent Claim 26 words

An orthopedic article in accordance with claim 3 wherein after immersion in water at least about 85% of said resin is retained in said resin-impregnated sheet.

Claim 46

Dependent Claim 26 words

An orthopedic article in accordance with claim 3 wherein after immersion in water at least about 95% of said resin is retained in said resin-impregnated sheet.

Claim 47

Dependent Claim 45 words

An orthopedic article in accordance with claim 3 wherein said resin-impregnated sheet is enclosed within a moisture-free package and wherein said exposed major surface exhibits a kinetic coefficient of friction of less than about 1.2 while said resin-impregnated sheet is enclosed within said moisture-free package.

Claim 48

Dependent Claim 70 words

An orthopedic article in accordance with claim 3, 4, 10, 11, 16, 29, 30, 17, 23, 27, 28, 31, 32, 33, 34, 35, 36, 12, 13, 14, 15, 37, 38, 39, 40, 41, 42, 43, 5, 6, 7, 8, 9, 15, 19, 20, 21, 22, 24, 25, 26, or 44 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of about 0.93 or less.

Claim 49

Dependent Claim 28 words

An orthopedic article in accordance with claim 45 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of at least about 0.2.

Claim 50

Dependent Claim 70 words

An orthopedic article in accordance with claim 3, 4, 10, 11, 16, 29, 30, 17, 23, 27, 28, 31, 32, 33, 34, 35, 36, 12, 13, 14, 15, 37, 38, 39, 40, 41, 42, 43, 5, 6, 7, 8, 9, 15, 19, 20, 21, 22, 24, 25, 26, or 44 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of about 0.75 or less.

Claim 51

Dependent Claim 28 words

An orthopedic article in accordance with claim 47 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of at least about 0.2.

Claim 52

Dependent Claim 70 words

An orthopedic article in accordance with claim 3, 4, 10, 11, 16, 29, 30, 17, 23, 27, 28, 31, 32, 33, 34, 35, 36, 12, 13, 14, 15, 37, 38, 39, 40, 41, 42, 43, 5, 6, 7, 8, 9, 15, 19, 20, 21, 22, 24, 25, 26, or 44 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of about 0.4 or less.

Claim 53

Dependent Claim 28 words

An orthopedic article in accordance with claim 49 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of at least about 0.2.

Claim 54

Dependent Claim 69 words

An orthopedic article in accordance with claim 3, 4, 10, 11, 16, 29, 30, 17, 23, 27, 28, 31, 32, 33, 34, 35, 36, 12, 13, 14, 15, 37, 38, 39, 40, 41, 42, 43, 5, 6, 7, 8, 9, 15, 19, 20, 21, 24, 25, 26, or 44 wherein said exposed major surface of said resin-impregnated sheet exhibits a kinetic coefficient of friction of at least about 0.2.

Claim 55

Dependent Claim 45 words

An orthopedic article in accordance with claim 3 wherein two exposed major surfaces of said resin-impregnated sheet are defined by the two sides of said sheet and wherein both of said exposed major surfaces exhibit a kinetic coefficient of friction of less than about 1.2.

Claim 56

Dependent Claim 30 words

An orthopedic article in accordance with claim 52 wherein both of said exposed major surfaces of said resin-impregnated sheet exhibit a kinetic coefficient of friction of about 0.93 or less.

Claim 57

Dependent Claim 30 words

An orthopedic article in accordance with claim 52 wherein both of said exposed major surfaces of said resin-impregnated sheet exhibit a kinetic coefficient of friction of about 0.75 or less.

Claim 58

Dependent Claim 30 words

An orthopedic article in accordance with claim 52 wherein both of said exposed major surfaces of said resin-impregnated sheet exhibit a kinetic coefficient of friction of about 0.4 or less.

Claim 59

Dependent Claim 34 words

An orthopedic article in accordance with claim 52, 53, 54, or 55 wherein both of said exposed major surfaces of said resin-impregnated sheet exhibit a kinetic coefficient of friction of at least about 0.2.

Claim 60

Independent Claim 119 words

A method of reducing the tack of an exposed major surface of an orthopedic article comprising a sheet impregnated with a curable and crosslinkable resin, said method comprising depositing a layer of an additive, which is incompatible with the curable and crosslinkable resin, onto the exposed major surface of the resin-impregnated sheet, wherein the additive is present in an amount sufficient to reduce the kinetic coefficient of friction of the exposed major surface of the resin-impregnated sheet to less than about 1.2, wherein said layer is deposited prior to wrapping said resin-impregnated sheet about a substrate, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 61

Independent Claim 119 words

A method of reducing the tack of an exposed major surface of an orthopedic article comprising a sheet impregnated with a curable and crosslinkable resin, said method comprising depositing a layer of an additive, which is incompatible with the curable and crosslinkable resin, onto the exposed major surface of the resin-impregnated sheet, wherein the additive is present in an amount sufficient to reduce the kinetic coefficient of friction of the exposed major surface of the resin-impregnated sheet to less than about 1.2, wherein said layer is deposited prior to wrapping said resin-impregnated sheet about a substrate, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 62

Dependent Claim 19 words

A method in accordance with claim 57 wherein the curable resin is comprised of hydrophilic groups covalently bound thereto.

Claim 63

Independent Claim 103 words

A method of preparing an orthopedic article comprising a sheet impregnated with a curable and crosslinkable resin and having reduced tack, the method comprising impregnating the sheet with a mixture comprised of: (a) the curable and crosslinkable resin, and (b) an additive which is incompatible with the curable and crosslinkable resin; wherein the amount of the additive is sufficient to reduce the kinetic coefficient of friction of an exposed major surface of the resin-impregnated sheet to less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 64

Independent Claim 103 words

A method of preparing an orthopedic article comprising a sheet impregnated with a curable and crosslinkable resin and having reduced tack, the method comprising impregnating the sheet with a mixture comprised of: (a) the curable and crosslinkable resin, and (b) an additive which is incompatible with the curable and crosslinkable resin; wherein the amount of the additive is sufficient to reduce the kinetic coefficient of friction of an exposed major surface of the resin-impregnated sheet to less than about 1.2, and wherein said resin is not appreciably dispersible in water and adjacent layers of said resin-impregnated sheet are laminatable after immersion in water.

Claim 65

Dependent Claim 19 words

A method in accordance with claim 59 wherein the curable resin is comprised of hydrophilic groups covalently bound thereto.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-10-04	1992-04-04	1992-10-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-10-04	1996-04-04	1996-10-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-10-04	2000-04-04	2000-10-04	$7700.00	Window Closed / Lapsed

Curable resin coated sheet having reduced tack

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