C08J3/243

NEAR-INFRARED (NIR) SENSITIZED ADHESIVE AND SEALANT COMPOSITIONS
20230407151 · 2023-12-21 ·

The present invention is directed to a photo-curable adhesive or sealant composition comprising, based on the weight of the composition: from 1 to 10 wt. % of a) at least one oxetane compound according to Formula (1) below:

##STR00001## wherein: R.sup.1 and R.sup.2 are H, C.sub.1-C.sub.6 alkyl, C.sub.6-C.sub.18 aryl or C.sub.7-C.sub.18 aralkyl; each R.sup.3 is independently a C.sub.1-C.sub.12 alkylene group, C.sub.6-C.sub.18 arylene group, C.sub.2-C.sub.12 alkenylene group or a poly(C.sub.1-C.sub.6 alkyleneoxy) group; and, n is an integer of from 1 to 3; from 5 to 20 wt. % of b) at least one epoxide compound, wherein part b) is characterized in that at least 50 wt. % of the total weight of epoxide compounds is constituted by b1) at one cycloaliphatic epoxide; from 0.1 to 5 wt % of c) at least one ionic photoacid generator; from 0 to 10 wt. % of d) at least one free radical photoinitiator; from 0.01 to 5 wt. % of e) at least one near-infrared absorbing dye; and, from 50 to 90 wt. % of f) particulate filler.

DUAL TEMPERATURE CURABLE SILICONE COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES PREPARED THEREFROM
20210087397 · 2021-03-25 ·

Dual temperature curable silicone compositions, articles made from such compositions, and methods for the manufacture and use thereof. In particular, a dual temperature curable silicone composition is manufactured from a composition comprising a vinyl silicone; a silicone hydride-containing crosslinker; a platinum-containing catalyst; and a peroxide catalyst.

Super Absorbent Polymer and Method for Producing Same

The present invention relates to an olefin polymer and a method for producing the same. The super absorbent polymer can exhibit excellent absorbent properties even in a swollen state and thus exhibit excellent anti-rewetting effects. Accordingly, when the super absorbent polymer is used, it is possible to provide a sanitary material such as a diaper or a sanitary napkin which can give a smooth touch feeling even after the body fluid is discharged.

Curable organopolysiloxane composition containing dynamic covalent polysiloxane

A curable organopolysiloxane composition containing dynamic covalent organopolysiloxanes which yields, upon cure, a silicone rubber having adaptive elastomeric and viscous characteristics is claimed. The silicone may be an elastomer or foam. A method of making the silicone rubber and a shaped article made of the cured adaptive viscoelastic silicone rubber composition are also claimed.

MEDICAL HYDROGEL HAVING RADIATION PROTECTION FUNCTION
20210213182 · 2021-07-15 ·

A medical hydrogel is formed by in-situ crosslinking an aldehyde-terminated multi-arm star polyethylene glycol and a polyamino compound. The aldehyde group and the multi-arm star polyethylene glycol are linked by a chemical bond such as an ether bond, an amide bond, an ester bond, a urethane bond, an imine bond, or a urea bond. The molar ratio of the amino in the polyamino compound to the aldehyde group in the aldehyde-terminated multi-arm star polyethylene glycol is 0.4-4.4:1. The polyamino compound is polylysine or a mixture of polylysine and polyethylenimine in a molar ratio of 2-30:3.

POLYMERIZABLE COMPOSITION FOR THREE-DIMENSIONAL MODELING, PRODUCTION METHOD OF THREE-DIMENSIONAL MODEL USING SAME, AND THREE-DIMENSIONAL MODEL
20210206898 · 2021-07-08 · ·

The problem to be addressed by the invention is to provide a polymerizable composition for three-dimensional modeling used for producing three-dimensional models having high flexural modulus and impact strength, as well as high dimensional accuracy, and a production method for the composition. In order to solve the problem, the polymerizable composition for three-dimensional modeling contains an inorganic filler with an aspect ratio of 5 or greater, a dispersant, a photopolymerizable compound, and a thermally polymerizable compound.

Method for Preparing Crosslinker Compound

The present disclosure relates to a method for preparing a crosslinker compound in which a crosslinker compound capable of using for the production of a super absorbent polymer can be obtained in a higher yield by a simple manner. The crosslinker compound obtained by the above method can be used as a thermally decomposable crosslinker in the process of producing a super absorbent polymer.

Permeable Superabsorbent and Process for Production Thereof
20210016247 · 2021-01-21 ·

A highly permeable superabsorbent is prepared by a process comprising

polymerizing an aqueous monomer solution comprising
a) at least one ethylenically unsaturated monomer which bears acid groups and is optionally at least partly in salt form,
b) at least one crosslinker,
c) at least one initiator,
d) optionally one or more ethylenically unsaturated monomers copolymerizable with the monomers mentioned under a), and
e) optionally one or more water-soluble polymers;
drying the resulting polymer,
optionally grinding the dried polymer and sieving the ground polymer,
optionally surface postcrosslinking the dried and optionally ground and sieved polymer,
wherein, after drying, grinding or sieving, and, if surface postcrosslinking is conducted, during or after this surface postcrosslinking, x-ray-amorphous aluminum hydroxide powder is added.

POLYETHYLENE TEREPHTHALATE (PET) AEROGEL

A polyethylene terephthalate aerogel. There is provided a polyethylene terephthalate (PET) aerogel comprising a porous network of cross-linked recycled PET fibers, wherein the PET aerogel has a thermal conductivity of 0.030-0.050 W/m K. There is also provided a method of forming the PET aerogel.

Super Absorbent Polymer and Preparation Method for the Same
20210009725 · 2021-01-14 · ·

The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.