The disclosure relates to a thermoset omniphobic composition, which includes a thermoset polymer with first, second, and third backbone segments, urethane groups linking the first and third backbone segments, and urea groups linking the first and second backbone segments. The first, second, and third backbone segments generally correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional hydrophobic polymer(s), and polyol(s), respectively. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, dirt-repellent, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods.

Various embodiments disclosed relate to a surfacing film. The surfacing film includes a base layer. The base layer includes a thermoplastic polyurethane film comprising a reaction product of a reaction mixture of a diisocyanate, a polyester polyol having a melting temperature of at least about 30° C.; and a diol chain extender. There are many reasons to use the surfacing film including easier and more cost effective manufacturing of the surfacing film by directly extruding the base layer by mixing the reaction mixture in an extruder. Another reason to use the surfacing film is that the film has improved resistance to discoloration. Another reason to use the film is that the film shows good toughness.

A method forming a surface modifying composition with reduced need for organic solvent and evaporation thereof for removal of insoluble reaction byproducts from the composition. The purified composition can be used in the formation of articles having improved biocompatibility, such as medical articles (e.g., spun hollow fiber).

The present invention aims to provide a cervical canal sealant that can be used as a sealant to stop bleeding in the uterus and vaginal discharge, particularly, a cervical canal sealant that can block the cervical canal to inhibit amniotic fluid leakage and that can also be peeled off without damaging reproductive tissue. The present invention relates to a sealant for reproductive organs in which a cured product (X) at 25 C. has a storage modulus G of 200 to 2,000 kPa, the cured product (X) being a cured product obtained by curing the sealant for reproductive organs to a thickness of 120 to 150 m.

The disclosure relates to a thermoset omniphobic composition, which includes a thermoset polymer with first, second, and third backbone segments, urethane groups linking the first and third backbone segments, and urea groups linking the first and second backbone segments. The first, second, and third backbone segments generally correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional hydrophobic polymer(s), and polyol(s), respectively. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, dirt-repellent, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods.

The present invention relates to a composition comprising an aqueous dispersion of acrylic based polymer particles; less than 15 PVC of a pigment; and a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a hydrophobic portion represented by Structure I: ##STR00001## Where R, R.sup.1, R.sup.2, m an n are defined herein. The composition provides viscosity stability for paint formulations containing a HEUR rheology modifier.

A surfactant and a method of forming the surfactant having the formula (I) where a is an integer from 1 to 10, b is an integer from 0 to 10, R.sub.1 is CH.sub.3 or H, n is an integer from 0 to 20, and R.sub.2 is a moiety selected from the group consisting of (II), (III), (IV), (V), (VI), (VII) or (VIII) where m is an integer from 0 to 4. The surfactant can be used in a method for preparing a rigid polyurethane foam. ##STR00001##

The present invention relates to a composition comprising an aqueous dispersion of acrylic based polymer particles; less than 15 PVC of a pigment; and a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a hydrophobic portion represented by Structure I:

##STR00001##

Where R, R.sup.1, R.sup.2, m an n are defined herein. The composition provides viscosity stability for paint formulations containing a HEUR rheology modifier.

A xylylene diisocyanate composition contains a xylylene diisocyanate and a chloromethylbenzyl isocyanate. The content ratio of the chloromethylbenzyl isocyanate is 0.2 ppm or more and below 600 ppm.

A method forming a surface modifying composition with reduced need for organic solvent and evaporation thereof for removal of insoluble reaction byproducts from the composition. The purified composition can be used in the formation of articles having improved biocompatibility, such as medical articles (e.g., spun hollow fiber).