C08K2003/267

Multilayer coating with a primer-surfacer of a nonaqueous coating material comprising at least two different polyesters

Method for producing a multicoat coating comprises: applying a primer-surfacer coat (I) to an optionally pretreated substrate, curing coat (I), applying a basecoat (II) to coat (I), optionally curing the basecoat (II), applying a clearcoat (III) to basecoat (II), and curing basecoat (II) and/or clearcoat (III), wherein coat (I) is obtained by applying a nonaqueous, solventborne coating material comprising by weight: at least 20% of at least one organic solvent, at least 8% of at least one first polyester (A1), having a glass transition temperature of at least 20 C. and an acid number of 0 to 40 mg KOH/g; at least 8% by weight of at least one second polyester (A2), different from (A1) and having a glass transition temperature of not more than 10 C.; at least one crosslinker (B); and at least 8% of one or more fillers and/or pigments (C).

SURFACE MODIFIED LAYERED DOUBLE HYDROXIDE

Surface-modified layered double hydroxides (LDHs) are disclosed, as well as processes by which they are made, and uses of the LDHs in composite materials. The surface-modified LDHs of the invention are more organophilic than their unmodified analogues, which allows the LDHs to be incorporated in a wide variety of materials, wherein the interesting functionality of LDHs may be exploited.

USE OF MONO-SUBSTITUTED SUCCINIC ANHYDRIDE
20190256688 · 2019-08-22 ·

The use of at least one mono-substituted succinic anhydride is described before or during compounding of a polymer composition including at least one polymer as polymer component and at least one calcium carbonate-based material as filler. The use of the at least one mono-substituted succinic anhyride can reduce the polymer decomposition during processing and/or can decrease the melt flow rate of such a compounded polymer composition by at least 10%. The use can also increase the viscosity of such a compounded polymer composition by at least 10%, in comparison to the same polymer composition that has been treated the same way in the absence of any mono-substituted succinic anhydride, wherein the polymer composition does not include polylactic acid.

CROSS-LINKABLE RUBBER COMPOSITION, RUBBER CROSSLINKED PRODUCT, AND COMPLEX
20190256693 · 2019-08-22 · ·

A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).

RESIN COMPOSITION AND MULTILAYERED STRUCTURE USING SAME

Provided is a resin composition comprising an ethylene-vinyl alcohol copolymer (A), a hydrate-forming metal salt (B), and a polyamide-based resin (C) that inhibits elution of a resin composition layer during hot water sterilization treatment of a multilayered structure including the resin composition layer, while suppressing odor during melt molding of the resin composition. An aromatic polyamide (C1) and an aliphatic polyamide (C2) are used for the polyamide-based resin (C) at a proportion of (C1)/(C2)=55/45-99/1.

Nucleated polypropylene resin for primary lens package

A primary package for holding contact lenses is disclosed. It is primarily made from a nucleated polypropylene resin. It has been determined that the nucleated polypropylene resin should be formulated with a polypropylene base resin with greater than 99% polypropylene homopolymer and a primary and secondary stabilizer, which also contains a catalyst acid scavenger; at least one nucleator/clarifier; and at least one catalyst acid scavenger.

Infrared radiation-emitting resin composition
11981847 · 2024-05-14 · ·

An infrared radiation-emitting resin composition includes an infrared radiation-emitting material and a resin. The infrared radiation-emitting material includes a titanium dioxide, a calcined hydrotalcite-like compound, and a nano-sized diamond. In the infrared radiation-emitting material, the mass ratio between the titanium dioxide and the calcined hydrotalcite-like compound is 60:40 to 90:10, while the content of the nano-sized diamond is 0.01 parts by mass or more and 0.5 parts by mass or less with respect to 100 parts by mass of the sum of the titanium dioxide and the calcined hydrotalcite-like compound.

Superabsorbent Polymer And Preparation Method Thereof

Provided are a superabsorbent polymer and a preparation method thereof. According to the present invention, a superabsorbent polymer having high centrifuge retention capacity and absorption rate may be prepared by using a specific foam stabilizer.

Flame retardant resin composition and molded article using the same
10370535 · 2019-08-06 · ·

A flame retardant resin composition that can have excellent low smoke properties includes (A) a polycarbonate resin, (B) a silicon impact modifier, and (C) a flame retardant, wherein the (B) silicon impact modifier comprises particles having a core-shell structure, and including about 60 wt % or more of a siloxane polymer, and wherein the (C) flame retardant includes a mixture of magnesium carbonate represented by Formula 1 and magnesium calcium carbonate represented by Formula 2:
Mg.sub.a(CO.sub.3).sub.b(OH).sub.2a2b.cH.sub.2O[Formula 1] wherein a, b and c are as defined in the detailed description;
Mg.sub.xCa.sub.y(CO.sub.3).sub.x+y.mH.sub.2O[Formula 2] wherein x, y and m are as defined in the detailed description.

Composite Materials of Tire Sidewall Rubber and Preparation Method thereof

The present invention relates to composite materials for tire, specifically to composite materials of tire sidewall rubber. A preparation method of the composite materials comprises the following steps of: plasticating rubber in an internal mixer, adding other component except for the sulfur powder and the accelerator to blend, lifting ram piston at 120125 C., discharging rubber at 150160 C. to obtain rubber compound, then mixing the rubber compound with the sulfur powder and the accelerator in open mill, rolling for 45 times and milling for 58 times to obtain product. The composite materials of the present invention not only meet the requirements of basic mechanical properties of the sidewall rubber, but also obviously improve thermo-oxidative aging resistance and ultraviolet aging resistance of the sidewall rubber, and thereby effectively prolong the service life of the tire.