The present invention relates to novolac vinyl esters useful as thermal resistance conferring components for anaerobic curable compositions, and anaerobic curable compositions having such novolac vinyl esters. The compositions are particularly useful as adhesives and sealants.

The present invention relates to novolac vinyl esters useful as thermal resistance conferring components for anaerobic curable compositions, and anaerobic curable compositions having such novolac vinyl esters. The compositions are particularly useful as adhesives and sealants.

A method and apparatus for dispensing an adhesive having a base component and a hardener component that when mixed produce a curable adhesive is disclosed. The apparatus includes a compliant exterior wall enclosing a first volume for containing the base component and a second volume for containing the hardener component, the first and second volumes being separated by a membrane within the exterior wall. The apparatus also includes a frangible region formed in the exterior wall and being operable to rupture to provide at least one outlet in response to an increase in pressure caused by a force applied to the exterior wall, the at least one outlet permitting respective portions of the base component and the hardener component to be expelled to facilitate mixing of the curable adhesive.

A method and apparatus for dispensing an adhesive having a base component and a hardener component that when mixed produce a curable adhesive is disclosed. The apparatus includes a compliant exterior wall enclosing a first volume for containing the base component and a second volume for containing the hardener component, the first and second volumes being separated by a membrane within the exterior wall. The apparatus also includes a frangible region formed in the exterior wall and being operable to rupture to provide at least one outlet in response to an increase in pressure caused by a force applied to the exterior wall, the at least one outlet permitting respective portions of the base component and the hardener component to be expelled to facilitate mixing of the curable adhesive.

An electrophotographic developer set comprising a toner, and a powder adhesive, wherein the powder adhesive comprises a crystalline polyester resin, and a thermoplastic resin other than the crystalline polyester resin; the amount of the crystalline polyester resin in the powder adhesive is 21% by mass or more; the melting point of the crystalline polyester resin is 55° C. to 100° C.; in a viscoelasticity measurement, where Gt′(100) denotes a storage elastic modulus of the toner at 100° C. and Gb′(100) denotes a storage elastic modulus of the powder adhesive at 100° C., Gb′(100) is 1.0×10.sup.5 Pa or less and Gt′(100)/Gb′(100) is 1.2 or more.

An electrophotographic developer set comprising a toner, and a powder adhesive, wherein the powder adhesive comprises a crystalline polyester resin, and a thermoplastic resin other than the crystalline polyester resin; the amount of the crystalline polyester resin in the powder adhesive is 21% by mass or more; the melting point of the crystalline polyester resin is 55° C. to 100° C.; in a viscoelasticity measurement, where Gt′(100) denotes a storage elastic modulus of the toner at 100° C. and Gb′(100) denotes a storage elastic modulus of the powder adhesive at 100° C., Gb′(100) is 1.0×10.sup.5 Pa or less and Gt′(100)/Gb′(100) is 1.2 or more.

A method for preparing a rooting plug is disclosed. The method calls for mixing a composition comprising (i) 0.2%-10% w/w bio-degradable polymer and (ii) an organic non-hydroxylic solvent with a plug mix. The resulting method prepares a rooting plug.

A method for preparing a rooting plug is disclosed. The method calls for mixing a composition comprising (i) 0.2%-10% w/w bio-degradable polymer and (ii) an organic non-hydroxylic solvent with a plug mix. The resulting method prepares a rooting plug.

The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing.

The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing.