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Class 526/931 - PRESSURE SENSITIVE ADHESIVE


Subclass of Class 526 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter relating to polymers derived from ethylenically
No. of patents: 63
Last issue date: 10/28/2008


1    
NumberTitleIssue Date
7442438Wet and dry stick adhesive, articles, and methods
An adhesive article is disclosed. The adhesive article includes a reinforced tape and a pressure sensitive layer disposed on the reinforced tape. The pressure sensitive layer includes an adhesive blend of 25 to 75 parts by weight of a first hydrophilic pressure sens...
10/28/2008
7431985Medical pressure-sensitive adhesive composition, process for producing the same, and medical tape
A medical pressure-sensitive adhesive composition having excellent re-adhesion property, and also excellence in both the peel adhesion property and the low skin stimulus property, a process for producing the same, and a medical tape are provided. In the medical tape...
10/07/2008
7410694Adhesive
The invention relates to an adhesive. Provision is made for the adhesive to comprise (a) 50 to 95% by weight of a heat-activable or pressure-sensitively adhesive polymer formed from a comonomer mixture comprising, based on the polymer, ...
08/12/2008
7396868Aqueous dispersion type pressure-sensitive adhesive composition and pressure-sensitive adhesive product
An aqueous dispersion type pressure-sensitive adhesive composition contains a polyalkylene glycol having a weight-average molecular weight of from 20,000 to 5,000,000 or at least one hydrophilic polymer selected from the group consisting of polyvinylpyrrolidone, pol...
07/08/2008
7374815Removable pressure sensitive adhesive compositions and sheets
A removable pressure sensitive adhesive composition includes at least (A) a hydroxyl-group-containing acrylic polymer, (B) an amine compound containing plural hydroxyl groups, and (C) a polyisocyanate compound and has a gel fraction of equal to or more than 70% by w...
05/20/2008
7371460Highly adhesive pressure sensitive adhesive compositions and sheets
A highly adhesive pressure sensitive adhesive composition includes at least (A) a hydroxyl-group-containing acrylic polymer, (B) an amine compound containing plural hydroxyl groups, and (C) a polyisocyanate compound and has a gel fraction of equal to or more than 10...
05/13/2008
7326462Acrylic pressure-sensitive adhesive composition and pressure-sensitive adhesive tape
The present invention relates to an acrylic pressure-sensitive adhesive composition containing an acrylic polymer and a tackifier obtained by acid modification of a tackifier resin inherently free of an acid component; a pressure-sensitive adhesive tape including a ...
02/05/2008
7109266Acrylic pressure-sensitive adhesive composition and pressure-sensitive adhesive tape
The present invention relates to an acrylic pressure-sensitive adhesive composition containing an acrylic polymer and a tackifier obtained by acid modification of a tackifier resin inherently free of an acid component; a pressure-sensitive adhesive tape including a ...
09/19/2006
7041754Emulsion type modifier for improving properties of pressure sensitive emulsion acrylic adhesives
The present invention relates to an emulsion type modifier for improving properties of the pressure-sensitive emulsion acrylic adhesives. The emulsion type modifier comprises: (a) 15 to 35 parts per hundred of monomers of a diester of a dicarboxylic acid; (b) 15 to ...
05/09/2006
6995207Removable pressure sensitive adhesives with plasticizer resistance properties
A removable, plasticizer resistant pressure sensitive composition that is particularly useful for PSA applications on plasticizer containing vinyl films is provided. The pressure sensitive adhesive comprises: (a) at least one hydrophobic monomer; (b) about 0.2 to ab...
02/07/2006
6991828Use of macromonomers to prepare acrylic PSAs
The use of macromonomers which have a glass transition temperature of at least 20° C., have at least one oligomeric and/or polymeric structural unit which is incompatible with polyacrylates, and h...
01/31/2006
6926959Radiation curable adhesive compositions comprising block copolymers having vinyl functionalized polydiene blocks
The invention is directed to a radiation curable adhesive composition comprising at least one vinyl modified block copolymer having a first polyvinyl aromatic block and a second polydiene block having vinyl functionality, and at least one tackifier. Optionally, the ...
08/09/2005
6881442Continuous two-stage preparation of solvent-free polyacrylate hotmelt PSAs
In a continuous two-stage process for preparing solvent-free polyacrylate hotmelt pressure sensitive adhesives which is gentle on the polymer and redeploys the solvent used in the process the following steps are carried out: polyme...
04/19/2005
6777080Pressure sensitive adhesive composition
Pressure sensitive adhesive compositions and pressure sensitive adhesive articles containing the adhesive compositions are disclosed. The adhesive compositions of the invention generally demonstrate favorable cohesive strength at elevated temperatures. The adhesive ...
08/17/2004
6652963Pressure sensitive adhesive, particularly for apolar surfaces
A pressure sensitive adhesive based on block copolymers which have at least one unit composed of a series of three alternating polymer blocks P(A) and P(B), wherein P(A) represents a homopolymer or copolymer block formed from a component A which itsel...
11/25/2003
6579915Radiation curable adhesive compositions comprising block copolymers having vinyl functionalized polydiene blocks
The invention is directed to a radiation curable adhesive composition comprising at least one vinyl modified block copolymer having a first polyvinyl aromatic block and a second polydiene block having vinyl functionality, and at least one tackifier. Optio...
06/17/2003
6537659Acidic polymer-based thermosettable PSAs, methods of their use, and thermoset adhesives therefrom
Thermosettable PSA compositions of the invention comprise a major proportion of the adhesive component of at least one acidic polymer and at least one amine-containing compound capable of reacting with acidic functional groups on the acidic polymer to cur...
03/25/2003
6512022Structured UV-crosslinked acrylic pressure-sensitive adhesive compositions
Structured polyacrylates obtainable by crosslinking, induced by UV irradiation, of a polymer mixture comprising the following components: a) polyacrylate copolymers of the following monomers a1) acrylic acid and/or acrylic esters of the following formula CH2
01/28/2003
6444772Supercritical fluid pressure sensitive adhesive polymers and their preparation
Pressure sensitive adhesive (PSA) polymers, especially low Tg, high tack, nonpolar and polar polymers useful in formulating PSA can be solubilized or dispersed in a supercritical fluid (SCF), such as liquid CO2 or supercritical CO
09/03/2002
6368708Polyolefin microspheres
Microspheres comprise a polymer or copolymer including one or more of 1) a plurality of C3 or larger alpha-olefin units wherein the polymer has an average number of branch points less than one per monomer unit, and 2) a plurality of C2
04/09/2002
6288148Acrylic emulsions containing tackifiers, processes for preparing them, and adhesive tape containing acrylic emulsions containing tackifiers
Acrylic emulsions are obtained by carrying out a polymerization reaction of a first acrylic monomer dispersion, adding a second acrylic monomer dispersion, and carrying out a further polymerization reaction wherein the first acrylic monomer dispersion con...
09/11/2001
6150017Process for preparing high-performance pressure-sensitive hotmelt adhesive compositions and the use thereof for producing self-adhesive tapes
Pressure-sensitive hotmelt adhesive composition based on non-thermoplastic elastomers, obtained by a) preparing, as the preliminary batch, a composition comprising the elastomers and one or more of the following additives such as fillers, anti-ageing agen...
11/21/2000
6013722Non-whitening emulsion pressure sensitive adhesives
Water resistant, low haze acrylic emulsion pressure sensitive adhesive compositions for use in decorative, light management or optical articles are disclosed. These emulsion pressure sensitive adhesives comprise (a) 50-90% by weight n-butyl acrylate, and ...
01/11/2000
5942578Energy beam curable pressure sensitive adhesive composition and use thereof
An energy beam curable pressure sensitive adhesive composition is disclosed which comprises at least two energy beam curable copolymers having energy beam polymerizable groups in side chains thereof. This energy beam curable pressure sensitive adhesive co...
08/24/1999
5859088Radiation-curable poly(଱-olefin) adhesives
The invention relates to adhesive compositions comprising polymers comprising C6 to C12 saturated ଱-olefin monomers and C2 to C5 ଱-olefin monomers and an effective amount of photoactive crosslinking ...
01/12/1999
5652308Tackifiers and a process to obtain tackifiers
Novel tackifier resins having a Mn of 5,000 or less and a Tg of 0° C. or above are produced by combining a metallocene catalyst with an alpha-olefin and a cyclic monomer. New adhesives are produced by blending the novel tackifier wi...
07/29/1997
5552519Rosin ester derivative as surfactants
Surfactant obtainable by and method for the production thereof comprising (1) esterifying a rosin with an alcohol to an acid value of less than 30, (2a) grafting the rosin ester with an unsaturated carboxylic acid or anhydride, the mole ratio carboxylic a...
09/03/1996
5536446Solid state conductive polymer compositions
Solid state conductive polymer compositions which are ionically-conductive regardless of the amount of water present in the composition are disclosed. The compositions have solvating polymer, ionic salt, and optionally if the composition is not cohesive a...
07/16/1996
5514730Radiation-curable acrylate/silicone pressure-sensitive adhesive compositions
The present invention provides a radiation curable vinyl-silicone pressure-sensitive adhesive composition which combines the advantages of silicone and acrylate pressure-sensitive adhesives and which does not experience gross phase separation problems. Th...
05/07/1996
5508313Tacky microspheres having pendant hydrophilic polymeric or oligomeric moieties
The invention provides inherently tacky, polymeric, organic, solvent-insoluble, solvent dispersible, elastomeric, pressure sensitive adhesive microspheres having pendant hydrophilic polymeric or oligomeric moieties having a degree of polymerization greate...
04/16/1996
5385679Solid state conductive polymer compositions, biomedical electrodes containing such compositions, and method of preparing same
Solid state conductive polymer compositions which are ionically-conductive regardless of the amount of water present in the composition are disclosed. The compositions have solvating polymer, ionic salt, and optionally if the composition is not cohesive a...
01/31/1995
5362816High cohesive strength pressure-sensitive adhesives incorporating acetoacetate
A pressure-sensitive adhesive having improved shear strength obtained by virtue of the formation of the enamine of a pendent acetoacetate is described. These materials contain acetoacetate functional monomer in a low Tg emulsion polymer. Shear strength is...
11/08/1994
5362420Low impedance pressure sensitive adhesive composition and biomedical electrodes using same
The present invention discloses a low impedance, water-absorbing, ionically-conductive, hydrophilic pressure sensitive adhesive composition comprising an ionically-conductive, hydrophilic, pressure sensitive adhesive hydrogel and crosslinked poly(N-vinyl ...
11/08/1994
5288827Copolymer of (meth)acryloxy-alkyl-siloxysilane and alkyl(meth)acrylates and the use thereof as pressure sensitive adhesives
A new polymer, the feed monomers and molar percents of which, exclusive of a polymerization initiator and crosslinker, are: A. (I) 42 mole % to 58 mole % of a siloxy silane of formula I, (II) 42 mole % to 58 mole % of an unsubstituted alkyl (meth)acrylate of f...
02/22/1994
5278227Emulsion pressure-sensitive adhesive polymers exhibiting excellent room- and low-temperature performance
There is provided inherently tacky, emulsion pressure-sensitive adhesive polymers comprising about 35 to about 65 percent by weight alkyl acrylates, about 15 to about 35 percent vinyl esters, about 20 to about 35 percent by weight diesters of a dicarboxyl...
01/11/1994
5276079Pressure-sensitive poly(n-vinyl lactam) adhesive composition and method for producing and using same
A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially u...
01/04/1994
5276084High performance pressure sensitive adhesive emulsion
A pressure sensitive adhesive composition comprising an aqueous emulsion of a copolymer consisting essentially of (a) 10-40 wt % vinyl acetate, (b) 5-30 wt % ethylene, (c) 5-50 wt % alkyl acrylate, (d) 5-40 wt % dialkyl maleate or fumarate, (e) 1-5 wt % hydroxyalky...
01/04/1994
5232958Electron-beam cured emulsion pressure-sensitive adhesives
Electron-beam cure by itself or in combination with multifunctional additives is used to improve the high-temperature shear properties of emulsion polymerized pressure-sensitive adhesives....
08/03/1993
5202361Pressure-sensitive adhesive
Radiation-curable, tackifier-free compositions are provided which contain: (i) a blend of certain acrylate esters and monoethylenically-unsaturated copolymerizable monomers; (ii) certain ଱-olefin polymers; and (iii) a photoinitiator and optionally, ...
04/13/1993
5194550Acrylate-based adhesive polymer
A (meth)acrylate-based adhesive polymer composition is improved by the use of itaconic acid and a hydroxyalkyl (meth)acrylate, such as hydroxyethyl acrylate, polymerized therein. From 1 to 5 weight percent itaconic acid and from 1.5 to 17 weight percent h...
03/16/1993
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