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US5024840A Expired / Lapsed US ⏱️ 0.0 years remaining

Antimicrobial carpet and carpet tile

Assignee: Interface Inc
•
Filing: 1989-05-15
•
Granted: 1991-06-18
•
Expires: 2009-05-15
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Abstract

Abstract A carpet and carpet tile resistant to the growth of Gram negative, Gram positive and fungal organisms which contains a polymeric non-plasticized PVC tuftlock precoat, fusion bonding adhesive, or secondary backing which has incorporated in it a phosphoric acid ester or its salt of the general formula: <IMAGE> wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C1 to C24, and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY1Y2Y3Y4, where Y1-4 are hydrogen, a hydrocarbon of C1 to C24, or a hydroxyalkyl group of C1 to C24; and there is at least one free hydroxyl group; and when X is NY1Y2Y3Y4 or a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal.

Inventors

  • 👤 Lawrence W. Blakely
  • 👤 Michael A. Howe
  • 👤 Daniel F. Pinholster, Jr.
  • 👤 Claude E. Terry
  • 👤 Robert H. McIntosh, Sr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 21:56
CPC Classifications
D; D06; D06M; D06M16/00; A; A61; A61L; A61L2/00; A61L2/16; A61L2/18; A01; A01N; A01N25/00; A01N25/34; A01N33/00; A01N33/02; A01N33/04; A01N33/08; A01N57/00; A01N57/10; A01N57/12; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0058; C08K5/49; C08K5/51; C08K5/52; C08K5/521; D06M13/00; D06M13/244; D06M13/282; D06M13/292; D06N; D06N7/00; D06N7/0063; D06N7/0068; D06N7/0071; A01N2300/00; A61L2103/00; A61L2103/50; D06N2203/00; D06N2203/04; D06N2203/045; D06N2203/048; D06N2205/00; D06N2205/14; D06N2209/00; D06N2209/06; D06N2209/067; D06N2209/16; D06N2209/1671; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 191 words
An antimicrobial carpet comprising fibers attached to a primary backing with a primary adhesive that includes: (i) a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR5## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is NY 1 Y 2 Y 3 Y 4 or a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal; and (ii) a latex polymer; and wherein the phosphoric acid ester or its salt is capable of migration from the primary adhesive to the fibers.
Claim 2
Dependent Claim 191 words
An antimicrobial carpet comprising fibers attached to a primary backing with a primary adhesive that includes: (i) a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR5## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is NY 1 Y 2 Y 3 Y 4 or a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal; and (ii) a latex polymer; and wherein the phosphoric acid ester or its salt is capable of migration from the primary adhesive to the fibers.
Claim 3
Dependent Claim 30 words
The carpet of claim 1 wherein the adhesive contains between approximately 0.2 and 10 parts by weight of the phosphoric acid ester to 100 parts by weight of polymeric solids.
Claim 4
Dependent Claim 30 words
The carpet of claim 2 wherein the adhesive contains between approximately 2.5 and 3.0 parts by weight of the phosphoric acid ester to 100 parts by weight of polymeric solids.
Claim 5
Dependent Claim 55 words
The carpet of claim 1 wherein the polymer is selected from the group consisting of polymers and copolymers of vinyl acetate-ethylene, styrene-butadiene, vinylidene chloride, vinyl chloride, cellulose acetate butyrate, vinyl chloride-acrylonitrile, vinyl acetate-acrylic acid, vinylidene chloride-acrylonitrile, acrylic acid-methacrylic acid, butadiene-acrylonitrile, acrylic acid-styrene, acrylonitrile-styrene, acrylonitrile-acrylic acid, acrylonitrile-alkyl acrylate, acrylonitrile butadiene styrene, and vinyl acetate acrylate ester.
Claim 6
Dependent Claim 11 words
The carpet of claim 4 wherein the polymer is vinyl acetate-ethylene.
Claim 7
Dependent Claim 13 words
The carpet of claim 5 wherein R is 2-ethylhexyl and R' is H.
Claim 8
Dependent Claim 10 words
The carpet of claim 6 wherein X + is di-(2-hydroxyethyl)cocoamine.
Claim 9
Dependent Claim 24 words
The carpet of claim 1 comprising pile yarn and a primary backing, wherein the primary adhesive bonds the pile yarn to the primary backing.
Claim 10
Dependent Claim 25 words
The carpet of claim 1 comprising pile yarn and a primary backing, wherein the primary adhesive bonds yarn that is tufted through a primary backing.
Claim 11
Dependent Claim 25 words
The carpet of claim 1 comprising pile yarn and a primary backing, wherein the primary adhesive bonds yarn that is woven through a primary backing.
Claim 12
Dependent Claim 38 words
The carpet of claim 1, wherein the primary adhesive further comprises a compound selected from the group consisting of a flame retardant, a dispersing agent, a defoamer, a viscosity adjusting agent, a catalyst for crosslinking, and a filler.
Claim 13
Dependent Claim 12 words
The carpet of claim 11, wherein the flame retardant is alumina trihydrate.
Claim 14
Dependent Claim 156 words
An antimicrobial carpet with a secondary backing comprising a polymeric or bitumen base material that includes a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR6## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group; of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal.
Claim 15
Dependent Claim 156 words
An antimicrobial carpet with a secondary backing comprising a polymeric or bitumen base material that includes a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR6## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group; of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal.
Claim 16
Dependent Claim 31 words
The antimicrobial carpet of claim 13, wherein between approximately 0.2 and 10 parts of phosphoric acid ester are added to the secondary backing per 100 parts by weight of base material.
Claim 17
Dependent Claim 39 words
The antimicrobial carpet of claim 13, wherein the base material is selected from the group consisting of polyvinyl chloride, ethylene vinyl acetate, polycarbonate, styrene butadiene rubber, ethylene propylene dicyclopentadiene (EPDM or EPTR), neoprene (poly(1,4-chloroprene)), acrylonitrile copolymers, bitumen and urethane.
Claim 18
Independent Claim 197 words
A method of preparing an antimicrobial carpet that includes fibers attached to a primary backing with a primary adhesive, comprising: applying the primary adhesive to the primary backing, wherein the primary adhesive includes: (i) a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR7## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal; and (ii) a latex polymer; and wherein the phosphoric acid ester is capable of migrating from the primary adhesive to the carpet fibers.
Claim 19
Independent Claim 197 words
A method of preparing an antimicrobial carpet that includes fibers attached to a primary backing with a primary adhesive, comprising: applying the primary adhesive to the primary backing, wherein the primary adhesive includes: (i) a biocidally effective amount of a phosphoric acid ester of the general formula: ##STR7## wherein R and R' are alkyl, oxyalkyl, polyoxyalkyl, aryl, aralkyl or alkaryl groups of C 1 to C 24 , and one of R or R' can be H; X is a Group I metal ion, Group II metal ion, transition metal ion, or NY 1 Y 2 Y 3 Y 4 , where Y 1-4 are hydrogen, a hydrocarbon of C 1 to C 24 , or a hydroxyalkyl group of C 1 to C 24 ; and there is at least one free hydroxyl group; and when X is a Group I metal ion, n is 1, when X is a Group II metal ion, n is 2; and when X is a transition metal, n is equal to the valence of the metal; and (ii) a latex polymer; and wherein the phosphoric acid ester is capable of migrating from the primary adhesive to the carpet fibers.
Claim 20
Dependent Claim 27 words
The method of claim 16 further comprising adding between approximately 0.2 and 10 parts by weight of phosphoric acid ester per 100 parts by weight of polymer.
Claim 21
Dependent Claim 27 words
The method of claim 17 further comprising adding between approximately 2.5 and 3.0 parts by weight of phosphoric acid ester per 100 parts by weight of polymer.
Claim 22
Dependent Claim 38 words
The method of claim 16, further comprising preparing the primary adhesive by: i) mixing the phosphoric acid ester with an aqueous solution of ammonia; ii) adding the ammoniated phosphoric acid ester solution to a solution of the polymer.
Claim 23
Dependent Claim 55 words
The method of claim 19 further comprising selecting the polymer from the group consisting of polymers and copolymers of vinyl acetate-ethylene, styrene-butadiene, vinylidene chloride, vinyl chloride, cellulose acetate butyrate, vinyl chloride-acrylonitrile, vinyl acetate-acrylic acid, vinylidene chloride-acrylonitrile, acrylic acid-methacrylic acid, butadiene-acrylonitrile, acrylic acid-styrene, acrylonitrile-styrene, acrylonitrile-acrylic acid, acrylonitrile-alkyl acrylate, acrylonitrile butadiene styrene, and vinyl acetate acrylic ester.
Claim 24
Dependent Claim 31 words
The method of claim 20 further comprising adding between approximately 0.3 and 13.50 parts by weight of ammoniated phosphoric acid ester to 100 parts by weight of the polymer in solution.
Claim 25
Dependent Claim 35 words
The method of claim 20 further comprising adding a compound selected from the group consisting of a flame retardant, a dispersing agent, a defoamer, a viscosity adjusting agent, a catalyst for crosslinking, and a filler.

References Cited (Backward Citations)

US2202124A Cited
US2272668A Cited
US2337424A Cited
US2541088A Cited
US2552325A Cited
US2592564A Cited
US2676122A Cited
US2756175A Cited
US2872351A Cited
US2831782A Cited
US2891878A Cited
US2922738A Cited
US2935490A Cited
US2976186A Cited
US2970081A Cited
US2997454A Cited
US2960529A Cited
US3306955A Cited
US3247134A Cited
GB1036578A Cited
US3404140A Cited
US3577515A Cited
US3312623A Cited
US3280131A Cited
US3294775A Cited
US3428713A Cited
US3364192A Cited
US3308488A Cited
US3279986A Cited
DE1228031B Cited
US3639594A Cited
US3475204A Cited
US3498969A Cited
US3762415A Cited
US3527726A Cited
US3620453A Cited
US3819656A Cited
GB1302894A Cited
US3708573A Cited
US3641226A Cited
US3885000A Cited
US3897521A Cited
US3933947A Cited
US3671304A Cited
US3769377A Cited
US3714256A Cited
US3925442A Cited
US3857934A Cited
US3776806A Cited
US3972243A Cited
US3896101A Cited
US3705235A Cited
US3897491A Cited
US3991187A Cited
US3758283A Cited
US3932612A Cited
US3873648A Cited
US3979307A Cited
US3919410A Cited
US3928563A Cited
US3920836A Cited
US3959556A Cited
US4039636A Cited
US4119724A Cited
US4139616A Cited
US4004001A Cited
US4025583A Cited
US4107292A Cited
US4083860A Cited
US4110504A Cited
US4006204A Cited
DE2530584A1 Cited
US4024324A Cited
US4094970A Cited
US4165369A Cited
US4071552A Cited
US4152421A Cited
US4259078A Cited
CH617854A5 Cited
US4272395A Cited
US4235733A Cited
GB2042574A Cited
US4276418A Cited
US4363663A Cited
US4289634A Cited
US4361611A Cited
EP0035375A1 Cited
US4343853A Cited
DE3014765A1 Cited
US4432833A Cited
DE3039437A1 Cited
CA1162356A Cited
SU1122664A1 Cited
GB2131029A Cited
DE3248708A1 Cited
US4442095A Cited
US4442096A Cited
US4401712A Cited
US4935232A Cited
US4560599A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-06-17 1994-12-17 1995-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-06-17 1998-12-17 1999-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-06-17 2002-12-17 2003-06-18 $7700.00 Window Closed / Lapsed

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