C08G18/807

Composition for holographic recording medium, and holographic recording medium
11573488 · 2023-02-07 · ·

A holographic recording medium composition comprising component (e): a compound having an isocyanate group or an isocyanate-reactive functional group and further having a nitroxyl radical group, wherein component (e) contains component (e-1) below: component (e-1): a compound having a heterobicyclic ring structure or a heterotricyclic ring structure, the heterobicyclic ring structure or the heterotricyclic ring structure being obtained by replacing a carbon atom in a bicyclic ring structure or a tricyclic ring structure by the nitroxyl radical group.

Flexible electrically conductive pastes and devices made therewith

This invention provides a polymer thick film electrically conductive paste composition, comprising conductive metal powder, a resin blend of polyol and phenoxy resin, blocked aliphatic polyisocyanate and one or more polar, aprotic solvents. In one embodiment the paste composition is used to form electrically conductive adhesive. In another embodiment the paste composition is used to form an electrically conductive polymer thick film.

POLYURETHANE RESIN AND METHOD FOR PRODUCING THE SAME
20230159750 · 2023-05-25 ·

A polyurethane resin and a method for producing the same are provided. The method includes a first polymer forming step implemented by reacting a first polyether polyol and an isocyanate to form a first polymer, a second polymer forming step implemented by reacting the first polymer and a second polyether polyol to form a second polymer, and a blocking step implemented by adding a blocking agent into the second polymer to form the polyurethane resin. A hydroxyl functionality of the first polyether polyol is less than a hydroxyl functionality of the second polyether polyol. A usage amount ratio of a usage amount of the first polyether polyol to a usage amount of the second polyether polyol to a usage amount of the blocking agent is within a range from 35:59:6 to 27:70:3. A degree of crosslinking of the polyurethane resin is within a range from 2.2 to 2.5.

BLOCK POLYISOCYANATE COMPOSITION, RESIN COMPOSITION, RESIN FILM AND LAYERED BODY

This blocked polyisocyanate composition contains a block polyisocyanate derived from one or more diisocyanates, an active hydrogen compound, and a blocking agent containing a malonic acid ester. The active hydrogen compound has a number-average molecular weight of 60 to 5,000 and an average of 1.6 to 2.4 functional groups.

CATALYSTS FOR THE FORMATION OF POLYURETHANES

The invention relates to novel urethane or carbamate compounds which can act as a catalyst for the reaction of at least one isocyanate compound with at least one isocyanate-reactive compound, in particular for the manufacture of polyisocyanate polyaddition products, such as polyurethanes, in particular, for the manufacture of polyurethane (PU) foams, where they exhibit superior blowing performance.

ALKOXYSILANE-FUNCTIONALIZED ALLOPHANATE-CONTAINING COATING COMPOSITIONS

The present invention relates to alkoxysilane-functionalized, allophanate-containing coating compositions, to a process for producing them, and to their use. In particular, the alkoxysilane-functionalized, allophanate-containing coating compositions include a) as a binder component, 10-99 wt % of at least one reaction product of i) at least one monourethane i) containing alkoxysilane groups and of the formula 1


R.sub.n(OR.sup.1).sub.3-nSi—R.sup.2—NH—(C═O)—OR.sup.3  formula 1

where R, R.sup.1, R.sup.2 and R.sup.3 are each independently hydrocarbyl radicals having 1-8 carbon atoms, which may be linear, branched or cyclic, or else may be integrated together to form a cyclic system, and n is 0-2, and ii) at least one diisocyanate ii), in a molar ratio of i) to ii) of from 3:1 to 1.5:1, preferably from 2.5:1 to 1.8:1, particularly preferably 2:1; b) 1-90 wt % of at least one other binder component, different from a), preferably a hydroxyl-containing or amino-containing binder component, c) 0-50 wt % of at least one aromatic, aliphatic or cycloaliphatic polyisocyanate having an NCO functionality of at least 2, preferably 2.8 to 6, d) 0-5 wt % of at least one catalyst, where components a)-d) add up to 100 wt %.

ALKOXYSILANE-FUNCTIONALIZED AND ALLOPHANATE-FUNCTIONALIZED URETHANES

The present invention relates to alkoxysilane-functionalized and allophanate-functionalized urethanes, methods for the preparation thereof, coating compositions comprising these and to the use thereof.

BLOCKED POLYISOCYANATE COMPOSITION, HEAT-CURABLE RESIN COMPOSITION, CURED PRODUCT, AND PRODUCTION METHOD THEREFOR

The present invention provides a blocked polyisocyanate composition comprising a blocked polyisocyanate compound and an amidate compound represented by the following Formula (2):

##STR00001##

wherein B, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, and R.sup.11 are as defined in the specification.

Fluoropolyether-based elastomers having low glass transition temperature

A curable precursor composition for a fluoroelastomers, methods of making fluoroelastomers, shaped articles and methods of making shaped articles.

Anti-staining resin, anti-staining fabric and fabricating method thereof

An anti-staining fabric includes a base cloth and an anti-staining resin. The anti-staining resin is disposed on the base cloth, in which a method of fabricating the anti-staining resin includes the following steps. A first thermal process is performed to mix a polyol, a cross-linking agent, and a choline to form a first mixture, in which a reaction temperature of the first thermal process is between 90° C. and 120° C. A second thermal process is performed to mix the first mixture and a chain extender to form the anti-staining resin, in which the chain extender includes a first reagent and a second reagent, and a reaction temperature of the second thermal process is between 120° C. and 150° C.