C08G18/78

COMPOUND, RESIN COMPOSITION AND LAMINATED SUBSTRATE THEREOF

A compound, a resin composition and a laminated substrate thereof are provided. The compound has a structure represented by Formula (I)

##STR00001##

wherein A.sup.1 is C.sub.24-48 alkylene group, C.sub.24-48 alkenylene group, C.sub.24-48 alkynylene group, C.sub.24-48 alicyclic alkylene group, C.sub.24-48 alicyclic alkenylene group, or C.sub.24-48 alicyclic alkynylene group. A.sup.2 is C.sub.2-12 alkylene group, C.sub.6-C.sub.25 arylene group with two reactive groups, C.sub.4-8 cycloalkylene group, C.sub.5-25 heteroarylene group, divalent C.sub.7-C.sub.25 alkylaryl group, divalent C.sub.7-25 acylaryl group, divalent C.sub.6-25 aryl ether group, or divalent C.sub.7-25 acyloxyaryl group; and, n≥1.

Two-component polyurethane adhesive for lamination
11352531 · 2022-06-07 · ·

1) Two-component polyurethane-based adhesive composition comprising an —NCO component and an —OH component, such that: the —NCO component is obtained by polyaddition between MDI and a composition of polyols comprising a polyether diol and a polyether triol, in an —NCO/—OH molar equivalent ratio of between 2.5 and 6.5; the —OH component is obtained by polyaddition between MDI and a composition of polyols with a functionality of 2 comprising an aliphatic polyester diol, a partially aromatic polyester diol and an aliphatic polyether diol, in an —NCO/—OH molar equivalent ratio of between 0.05 0.50; the amounts of the —NCO and —OH components being such that the —NCO/—OH molar equivalent ratio is within a range extending from 1.5 to 1.7. 2) Multilayer film comprising 2 thin layers of material linked to one another by a continuous layer constituted by said crosslinked adhesive composition. 3) Process for preparing said film and use thereof in the manufacture of flexible packagings.

Waterborne azido-alkyne click compositions

A waterborne poly(alkynyl carbamate) prepolymer is provided which comprises a reaction product of a polyisocyanate comprising a first portion and a second portion of isocyanate groups; an isocyanate-reactive component comprising 0.1 mol % to 6 mol % of a C.sub.10-C.sub.50 glycol ether; and 99.9 mol % to 94 mol % of an alkynol, wherein the mol % is based on the moles of isocyanate in the polyisocyanate, wherein the first portion of isocyanate groups reacts with the C.sub.10-C.sub.50 glycol ether, wherein the second portion of isocyanate groups reacts with the alkynol, and wherein reaction occurs optionally in the presence of a catalyst. The reaction of long chain glycol ethers with the polyisocyanate at a level of from 0.1 mol % to 6 mol % imparts water dispersibility to the prepolymer, and when the prepolymer is dispersed in water, the performance of waterborne alternative polyurethane compositions made therefrom, such as coatings, adhesives, sealants, films, elastomers, castings, foams, and composites, are not compromised. The invention allows for the use of water as a carrier, thus eliminating the need for organic solvents.

UV Curable Coating Compositions Containing Aliphatic Urethane Acrylate Resins
20220169889 · 2022-06-02 ·

Described in preferred embodiments are UV curable coating compositions including a unique blend of aliphatic urethane acrylate resins. Also described are coated articles and methods for their production involving the use of the coating compositions.

Blocked polyisocyanate composition, one-component coating composition, coating film, and coated article

The present invention provides a blocked polyisocyanate composition comprising a blocked polyisocyanate formed through blocking at least a part of isocyanate groups possessed by a polyisocyanate derived from one or two or more diisocyanates selected from the group consisting of an aliphatic diisocyanate and an alicyclic diisocyanate with an active methylene-based compound comprising a malonic acid diester, wherein a specific molar ratio calculated from contents (mol %) of isocyanurate groups, iminooxadiazinedione groups, uretdione groups, and allophanate groups is 0.05 or more and 0.60 or less.

Alkoxy-silane-modified polyurea compounds based on a mixture of dialkoxy and trialkoxy silanes

The invention relates to a polyurea compound, which can be produced by reacting a polyisocyanate with a dialkoxy amino silane according to general formula R.sup.1(R.sup.1O).sub.2Si(CH.sub.2).sub.mNHR.sup.2 and optionally also with a trialkoxy amino silane according to general formula (R.sup.1O).sub.3Si(CH.sub.2).sub.nNHR.sup.2 wherein the groups R.sup.1 are selected independently from one another from C.sub.1-C.sub.20-alkyl or C.sub.6-C.sub.20-aryl, n and m are each whole numbers between 1 and 4, the groups R.sup.2 are selected independently from one another from —H, C.sub.1-C.sub.2O-alkyl, C3-C12-cycloalkyl, and —CHR.sup.3CH.sub.2COOR.sup.4, the groups R.sup.3 are selected independently from one another from H, C.sub.1-C.sub.20-alkyl and —COOR.sup.4, and the groups R.sup.4 represent C.sub.1-C.sub.20-alkyl independently from one another. The invention also relates to the use of the compound as a binder for producing coatings.

POLYISOCYANATE RESINS
20220153916 · 2022-05-19 ·

A polyisocyanate resin can include from 25 wt % to 50 wt % of a first cycloaliphatic polyisocyanate and from 50 wt % to 75 wt % of a flexibilizing component based on a total weight of the polyisocyanate resin. The first cycloaliphatic polyisocyanate can have an NCO % of from 12 wt % to 20 wt % based on ISO 11909:2007. The flexibilizing component can include a linear aliphatic polyisocyanate having a number average isocyanate functionality of from 2 to 3 based on gel permeation chromatography and an isocyanate-terminated reaction product of a second cycloaliphatic polyisocyanate and an isocyanate-reactive material, the reaction product having a Tg of less than −30° C. based on a Differential Scanning Calorimetry (2.sup.nd Heating) temperature scan from −100° C. to 150° C. using 20° C./min heating and cooling ramps. The isocyanate-terminated reaction product and the linear aliphatic polyisocyanate can be present at a weight ratio of from 0.5 to 2.5.

RHEOLOGY-MODIFYING TRIURETHANE COMPOUND
20230265295 · 2023-08-24 · ·

A triurethane compound may be used to modify rheology. An aqueous composition may include such a triurethane compound and the viscosity of an aqueous composition may be controlled using the triurethane compound.

ANHYDROUSLY CURING POLYISOCYANATE-BASED ADHESIVES

The present invention relates to adhesives which are characterized in that they cure in the absence of water and at room temperature with the formation of isocyanurate groups.

PROCESS FOR THE PREPARATION OF POLYISOCYANATES WITH DIMER, TRIMER AND/OR ALLOPHANATE AND OPTIONALLY URETHANE STRUCTURE
20220144995 · 2022-05-12 ·

The invention relates to a process for the preparation of polyisocyanates with dimer, trimer and/or allophanate and optionally urethane structure.