Patents Assigned to Permacel
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Patent number: 7476429Abstract: A bridge label including two adhesive portions, the adhesive portions defining a first face of the bridge label; and a non-adhesive portion extending between the two adhesive portions, the non-adhesive portion also defining the first face of the bridge label. A splicing system including the bridge label in combination with a top sheet of a new roll, and a splicing tape provided across the top sheet of the roll. A second face of the bridge label, which opposes the first face, is affixed to an exposed adhesive portion of the splicing tape. The adhesive portions of the bridge label affix the first face of the bridge label to an expiring web. A splicing method including affixing the bridge label to a splicing tape that is adhered to the roll.Type: GrantFiled: May 11, 2004Date of Patent: January 13, 2009Assignees: Permacel, Nitto Denko CorporationInventors: Jason A. Bean, Koichi Nakamura
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Patent number: 7037397Abstract: A splicing tape (100) is provided having a base layer (10), an adhesive layer (20) on the top of the base layer (10), a first adhesive strip (30a) and a second adhesive strip (30b) on the bottom of the base layer (10), and a two lines of separating portions (50a and 50b) in the base layer (10). A splicing tape (100a) is also provided having a base layer (10a), a top adhesive (20a) on the top of the base layer (10) with detackified portions (14a and 15a), and a bottom adhesive (30c) on the bottom of the base layer (10a) with a detackified portion (23a), and first and second lines of separating portions (50a and 50b) in the base layer (10a). The line of separating portions (50a or 50b) can include perforations having a ratio of perforation length to space between perforations between a ratio of 4 to 6 and a ratio of 9 to 1.Type: GrantFiled: January 21, 2005Date of Patent: May 2, 2006Assignees: Permacel, Nitto Denko CorporationInventors: Jason A. Bean, Koichi Nakamura
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Patent number: 6899933Abstract: A splicing tape (100) is provided having a base layer (10), an adhesive layer (20) on the top of the base layer (10), a first adhesive strip (30a) and a second adhesive strip (30b) on the bottom of the base layer (10), and a two lines of separating portions (50a and 50b) in the base layer (10). A splicing tape (100a) is also provided having a base layer (10a), a top adhesive (20a) on the top of the base layer (10) with detackified portions (14a and 15a), and a bottom adhesive (30c) on the bottom of the base layer (10a) with a detackified portion (23a), and first and second lines of separating portions (50a and 50b) in the base layer (10a). The line of separating portions (50a or 50b) can include perforations having a ratio of perforation length to space between perforations between a ratio of 4 to 6 and a ratio of 9 to 1.Type: GrantFiled: October 21, 2002Date of Patent: May 31, 2005Assignees: Permacel, Nitto Denko CorporationInventors: Jason A. Bean, Koichi Nakamura
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Publication number: 20040058151Abstract: A pressure-sensitive adhesive composition comprising a water-soluble polymer A, a water-insoluble component B, a water-incompatible solvent C that dissolves the water-insoluble component B and is incompatible with water, a water-soluble plasticizer D, and water, wherein the pressure-sensitive adhesive composition in a dry state has water solubility according to Technical Association of The Pulp and Paper Industry Useful Method 213 (TAPPI UM 213). Also disclosed are a method for producing a pressure-sensitive adhesive composition according to the present invention, comprising the steps of: preliminarily preparing a true nonaqueous solution of a water-insoluble component B in a water-incompatible solvent C, and mixing the true nonaqueous solution with an aqueous solution of at least one member selected from the group consisting of a water-soluble polymer A and a water-soluble plasticizer D, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape that use the composition.Type: ApplicationFiled: September 26, 2003Publication date: March 25, 2004Applicant: PERMACEL and NITTO DENKO CORPORATIONInventors: Svetlana I. Contrada, Koichi Nakamura, David R. Hamblin
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Publication number: 20040045658Abstract: A splicing tape (100) is provided having a base layer (10), an adhesive layer (20) on the top of the base layer (10), a first adhesive strip (30a) and a second adhesive strip (30b) on the bottom of the base layer (10), and a two lines of separating portions (50a and 50b) in the base layer (10). A splicing tape (100a) is also provided having a base layer (10a), a top adhesive (20a) on the top of the base layer (10) with detackified portions (14a and 15a), and a bottom adhesive (30c) on the bottom of the base layer (10a) with a detackified portion (23a), and first and second lines of separating portions (50a and 50b) in the base layer (10a). The line of separating portions (50a or 50b) can include perforations having a ratio of perforation length to space between perforations between a ratio of 4 to 6 and a ratio of 9 to 1.Type: ApplicationFiled: October 21, 2002Publication date: March 11, 2004Applicant: PERMACELInventors: Jason A. Bean, Koichi Nakamura
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Publication number: 20030108736Abstract: A pressure-sensitive adhesive composition comprising a water-soluble polymer A, a water-insoluble component B, a water-incompatible solvent C that dissolves the water-insoluble component B and is incompatible with water, a water-soluble plasticizer D, and water, wherein the pressure-sensitive adhesive composition in a dry state has water solubility according to Technical Association of The Pulp and Paper Industry Useful Method 213 (TAPPI UM 213). Also disclosed are a method for producing a pressure-sensitive adhesive composition according to the present invention, comprising the steps of: preliminarily preparing a true nonaqueous solution of a water-insoluble component B in a water-incompatible solvent C, and mixing the true nonaqueous solution with an aqueous solution of at least one member selected from the group consisting of a water-soluble polymer A and a water-soluble plasticizer D, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape that use the composition.Type: ApplicationFiled: December 6, 2001Publication date: June 12, 2003Applicant: PERMACEL and NITTO DENKO CORPORATIONInventors: Svetlana I. Contrada, Koichi Nakamura, David R. Hamblin
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Publication number: 20030083415Abstract: A pressure-sensitive adhesive composition comprising a water-soluble polymer A, a water-insoluble component B, a water-incompatible solvent C that dissolves the water-insoluble component B and is incompatible with water, a water-soluble plasticizer D, and water, wherein the pressure-sensitive adhesive composition in a dry state has water solubility according to Technical Association of The Pulp and Paper Industry Useful Method 213 (TAPPI UM 213). Also disclosed are a method for producing a pressure-sensitive adhesive composition according to the present invention, comprising the steps of: preliminarily preparing a true nonaqueous solution of a water-insoluble component B in a water-incompatible solvent C, and mixing the true nonaqueous solution with an aqueous solution of at least one member selected from the group consisting of a water-soluble polymer A and a water-soluble plasticizer D, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape that use the composition.Type: ApplicationFiled: August 31, 2001Publication date: May 1, 2003Applicant: PERMACELInventors: Svetlana I. Contrada, Koichi Nakamura, David R. Hamblin
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Patent number: 5439963Abstract: This invention relates to a highly tacky pressure sensitive adhesive having superior high temperature properties. The adhesive is formed of about 50-100 parts of a diblock copolymer and about 0-50 parts of a linear or radial triblock copolymer, a tackifier and a curing agent. The adhesive thus formed can be coated on a backing to form a tape and then vulcanized in situ to provide a precured or prevulcanized adhesive tape having high temperature properties and superior tack properties.Type: GrantFiled: January 9, 1995Date of Patent: August 8, 1995Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4513059Abstract: An aqueous release coating composition comprising a perfluorinated ester polymer and a film-forming polymer is described.Type: GrantFiled: December 21, 1983Date of Patent: April 23, 1985Assignee: PermacelInventor: Winifred C. Dabroski
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Patent number: 4432848Abstract: Pressure-sensitive adhesives with superior high temperature adhesion properties are prepared by radiation curing of an adhesive composition comprising a simple block copolymer as the elastomer component.Type: GrantFiled: November 19, 1981Date of Patent: February 21, 1984Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4431598Abstract: An improved process for preparing pressure-sensitive adhesive film and tape by extrusion of a relatively high molecular weight thermoplastic elastomer with a relatively low molecular weight tackifier resin is described. An apparatus suitable for carrying out the extrusion is also described.Type: GrantFiled: December 21, 1981Date of Patent: February 14, 1984Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4424244Abstract: A printable release coating composition having a combination of properties of good release, good ink retention, good adhesion, good tack and no backsize splitting is prepared having three essential components; (1) vinylidene chloride-acrylonitrile copolymer, (2) a polymer selected from vinyl chloride-vinyl acetate-vinyl alcohol terpolymer, vinyl acetate-vinyl alcohol copolymer and solvent soluble copolyester, and (3) vinyl ester-alkyl maleate copolymer.Type: GrantFiled: October 1, 1981Date of Patent: January 3, 1984Assignee: PermacelInventor: Frank Puskadi
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Patent number: 4388349Abstract: A process of extrusion coating which is particularly useful in the manufacture of viscous pressure-sensitive adhesive sheets and tapes is described. In the process, the distance between the die orifice and contacting substrate, and spaced coating roll and the relationships between the direction of extrusion, the direction of approach of the substrate and the direction of departure of the coated substrate are important.Type: GrantFiled: July 28, 1982Date of Patent: June 14, 1983Assignee: PermacelInventors: Ralf Korpman, C. Palermo Felice
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Patent number: 4388432Abstract: A high-temperature shear-resistant, water-dispersible pressure-sensitive adhesive comprising (1) a copolymer of an acrylic acid compound and acrylamide, (2) a plasticizer-tackifier comprising a polyhydric alcohol compound and (3) caustic, and a process for its preparation are described.Type: GrantFiled: December 15, 1981Date of Patent: June 14, 1983Assignee: PermacelInventor: Robert R. Eskay
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Patent number: 4342815Abstract: Aqueous release backsize compositions are provided which when applied to films provide easy unwind properties without adversely affecting the adhesive properties of pressure-sensitive tapes.Type: GrantFiled: February 4, 1981Date of Patent: August 3, 1982Assignee: PermacelInventor: Donald F. Doehnert
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Patent number: 4328269Abstract: A normally tacky and pressure-sensitive adhesive which is dispersible in water is obtained a composition comprising an acrylate modified polysaccharide, i.e., a polysaccharide polyacrylate, and a polyhydroxy compound by subjecting the composition to a short heat cycle.Type: GrantFiled: August 25, 1980Date of Patent: May 4, 1982Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4325770Abstract: A process for making a pressure-sensitive adhesive coated product from an elastomer utilizing dry blending of powders and dry coating steps is described. Compositions suitable for use in this process are also described.Type: GrantFiled: June 27, 1980Date of Patent: April 20, 1982Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4318408Abstract: A flexible non-disintegrative absorbent product comprising a water-insoluble substantially non-swelling matrix of an elastomeric polymer bearing a uniformly dispersed particulate water-insoluble water-swellable organic polymer absorbent. Certain compositions and processes for their preparation as well as articles prepared from the products are described.Type: GrantFiled: October 29, 1979Date of Patent: March 9, 1982Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4314558Abstract: The invention describes surgical drainage bags suitable for receiving body fluids and wastes. One aspect of the invention is a self-sealing bag of flexible film in which the opening may be sealed by stretching, relaxing and pressing the sides of the opening together. Another aspect of the invention is the incorporation of an absorbent product into surgical bags. The preferred embodiment embraces both these aspects. Suitable materials for the bag and the absorbent products are described.Type: GrantFiled: April 28, 1980Date of Patent: February 9, 1982Assignee: PermacelInventor: Ralf Korpman
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Patent number: 4301255Abstract: New polymer alloy compositions of a thermoplastic-elastomeric block copolymer and copolyester, and films prepared therefrom are described. The films have superior properties, including resistance to attack by organic solvents.Type: GrantFiled: May 5, 1980Date of Patent: November 17, 1981Assignee: PermacelInventor: Ralf Korpman