Provided is a method for producing a self-adhesive to be arranged on a package comprising a space to store contents and an opening by which the space and an outside communicate, wherein the opening is repeatedly openable and sealable by the self-adhesive that consists of a cross-linking material of a resin composition containing a (meth)acrylic acid ester copolymer resin having a glass transition temperature of −22.8° C. or more, and a crosslinking agent. The method comprises making the resin composition that contains the (meth)acrylic acid ester copolymer resin, and the crosslinking agent, the resin composition being either emulsion or dispersion; and cross-linking the resin composition.

Provided are a self-adsorbable foamed laminate sheet having excellent weather resistance and causing no paste residue, and a composition for a self-adsorbable foamed sheet used to obtain the self-adsorbable foamed laminate sheet. A composition for a self-adsorbable foamed sheet comprises: a copolymer containing an unsaturated carboxylic acid monomer unit and having a solubility parameter (SP value) of 9.7 (cal/cm.sup.3).sup.1/2 or less and a glass-transition temperature of −10° C. or less; and a crosslinking agent.

Described herein is a perfluorinated aminoolefin compound of general formula (I): CFY═CXN(R.sub.f)CF.sub.2R.sub.f′ where: (a) R.sub.f and R.sub.f′ are (i) independently selected from a linear or branched perfluoroalkyl group having 1-8 carbon atoms, optionally comprising at least one catenated O or N atom, or (ii) bonded together to form a perfluorinated ring structure having 4-8 ring carbon atoms, optionally comprising at least one catenated O atom; and (b) X and Y are (i) independently selected from a perfluoroalkyl group having 1-4 carbon atoms, or (ii) bonded together to form a perfluorinated ring structure having 5-6 ring carbon atoms. Such compounds may be used in heat transfer, foam blowing or immersion cooling applications, or as a working fluid in a Rankine cycle, a coating or lubricant, or as a dielectric fluid. Also disclosed herein is a method for making such compounds.

The present invention relates to a novel method for manufacturing rigid epoxy foams. Furthermore the present invention relates to materials, especially novel two-component epoxy systems that are used to conduct this method.

This novel process is characterized in that an epoxy resin is mixed with a blowing agent, especially an encapsulated blowing agent, and afterwards with an ionic liquid. Surprisingly the reaction, including foaming, starts at room temperature after a short time like after only 2 to 3 minutes.

In summary, the present invention comprises a two-component foam-in-place structural material and a process for producing a rigid epoxy foam.

According to one embodiment, a sound absorbing urethane foam is provided. In the sound absorbing urethane foam, a normal incidence sound absorbing coefficient at a time when a diameter is 29 mm and a thickness is 10 mm is 40% or more in an entire range of frequencies of 1000 Hz to 3150 Hz.

A one-component thermosetting epoxy resin composition, including a) at least one epoxy resin A having on average more than one epoxide group per molecule; b) at least one latent hardener for epoxy resins; c) at least one physical or chemical blowing agent BA; d) 3-15 wt.-% of at least one carboxyl group containing acrylonitrile/butadiene rubber ABR1 with a Mooney Viscosity of 15-30 MU (Mooney units), based on the total amount of epoxy resin A; and e) 3-15 wt.-% of at least one carboxyl group containing acrylonitrile/butadiene rubber ABR2 with a Mooney Viscosity of 35-50 MU (Mooney units), based on the total amount of epoxy resin A. The ratio of ABR1 to ABR2 is from 0.5-2.0. The epoxy resin adhesive is notable for the improved storage stability.

A polyurethane foam is disclosed having unique load bearing characteristics rendering it suitable for a variety of applications. The foam exhibits high surface-softness and smoothness properties, making it well-suited for use in articles such as pillows and mattress toppers. However, upon continued application of pressure, the resilience of the foam increases sharply, translating into a remarkable support characteristics that make the foam suitable for use in the seat portions of chairs and sofas, as well as in the base portion of mattresses. The foams therefore address the limitations of conventional, high-resilience and visco-elastic polyurethane foams. A process of making the foam and its use in various articles is also disclosed.

The invention relates to acetoacetylated lignin resin compositions comprising the reaction product of lignin and an acetoacetate ester. The invention also relates to (meth)acrylated lignin resin compositions comprising the reaction product of lignin and a (meth)acrylic compound. The invention also relates to methods of making the acetoacetylated and (meth)acrylated lignin resin compositions. The invention also relates to curable coating compositions comprising the acetoacetylated and (meth)acrylated lignin resin compositions. The invention also relates to methods of making the curable coating compositions of the invention. The invention also relates to methods of applying curable coating compositions of the invention to substrates. The invention also relates to articles of manufacture comprising a curable coating composition of the invention and a method of making such article. The invention also relates to foam materials comprising the reaction product of an acetoacetylated resin composition, a polyamine compound, and a physical blowing agent and/or a polysiloxane compound.

The present invention relates to a process for preparing a porous material, at least comprising the steps of providing a mixture (I) comprising a composition (A) comprising components suitable to form an organic gel and a solvent (B), reacting the components in the composition (A) in the presence of the solvent (B) to form a gel, and drying of the gel obtained in step b), wherein the composition (A) comprises a catalyst system (CS) at least comprising a catalyst component (C1) selected from the group consisting of ammonium salts and a carboxylic acid as catalyst component (C2). The invention further relates to the porous materials which can be obtained in this way and the use of the porous materials as thermal insulation material and in vacuum insulation panels and vacuum insulation systems, in particular in interior or exterior thermal insulation systems as well as for the insulation of refrigerators and freezers and in water tank or ice maker insulation systems.

A polymer matrix composite comprising a porous polymeric network; and a plurality of at least one of polar solvent soluble particles or polar solvent swellable particles distributed within the polymeric network structure; wherein the polymeric network structure is insoluble relative to the soluble particles, wherein the soluble particles are present in a range from 1 to 99 weight percent, based on the total weight of the at least one of soluble particles or swellable particles and the polymer (excluding any solvent); and wherein the polymer matrix composite has particles that at least one of (a) upon exposure to a polar fluid, release at least some component from the polymer matrix composite layer or (b) upon exposure to a polar fluid, absorb some of the polar fluid; and methods for making the same. The polymer matrix composites are useful, for example, in delivery devices comprising the polymer matrix composite, wherein the at least one of soluble particles or swellable particles comprise at least one of an active agent or a released agent.