The present invention is directed to solventborne film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer prepared from a reaction mixture comprising 0.5 to 5 percent by weight maleic anhydride based on the total weight of monomers in the reaction mixture; b) an aminoplast: and c) a polymer component comprising: i) an addition polymer prepared from a reaction mixture comprising coumarone; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the solventborne film-forming composition above to a substrate to form a coated substrate; (2) applying a curable film-forming composition to at least a portion of the coated substrate formed in step (1) to form a multi-layer coated substrate; and (3) heating the multi-layer coated substrate formed in step (2) to a temperature and for a time sufficient to cure the film-forming composition.

The present invention is directed to solventborne film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer prepared from a reaction mixture comprising 0.5 to 5 percent by weight maleic anhydride based on the total weight of monomers in the reaction mixture; b) an aminoplast: and c) a polymer component comprising: i) an addition polymer prepared from a reaction mixture comprising coumarone; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the solventborne film-forming composition above to a substrate to form a coated substrate; (2) applying a curable film-forming composition to at least a portion of the coated substrate formed in step (1) to form a multi-layer coated substrate; and (3) heating the multi-layer coated substrate formed in step (2) to a temperature and for a time sufficient to cure the film-forming composition.

The present invention generally relates to covalent network polymers prepared from an imine-linked oligomer and an independent crosslinker comprising reactive moieties selected from the group consisting of epoxy, isocyanate, bismaleimide, sulfide, polyurethane, anhydride, polyester and combinations thereof. The covalent network polymers disclosed herein are advantageously made by anhydrous reactions, which enables the highest known glass transition temperatures to date for this class of materials. Further, the disclosed covalent network polymers can be formed in continuous processes, such as additive manufacturing processes that produce three-dimensional objects or roll-to-roll processes that produce covalent network polymer films or fully cured prepreg in various size formats.

The present invention relates to a transmission belt which is provided with: a rubber layer that is formed from a vulcanized product of a rubber composition which contains a rubber component containing an ethylene--olefin elastomer, a filler containing silica, a vulcanizing agent containing a sulfur-based vulcanizing agent, and a curable resin containing an amino resin; and a fiber member that is in contact with the rubber layer.

The present invention provides a polymer-polyol and its composition for producing photochromic coating products. The polymer-polyol is prepared by copolymerization of acrylate concluding hydroxy or not. The composition includes: (i) matrix resin; (ii) polymer-polyol mentioned above; and (iii) photochromic compound. And the solid content of the hydroxyl group in the composition is about 1.0%-6.0%. The composition has good compatibility with other functional coatings, such as unique organosilane hard coating and/or antireflective coating. It is appropriate for preparing the photochromic coating products which can be used in the ophthalmology field.

The present disclosure refers to an acid-cured coating composition with low free formaldehyde emission and preparation method thereof. The acid-cured coating composition comprises an alkyd resin, an amino resin, and an acetoacetyl-functional silicon-based resin, wherein upon curing, the amino resin itself releases at least 0.8 wt % of formaldehyde, based on the weight of the amino resin; weight ratio of the alkyd resin and the amino resin is in a range of from 70:30 to 45:55. The present disclosure also refers to a coated article.

The present disclosure refers to an acid-cured coating composition with low free formaldehyde emission and preparation method thereof. The acid-cured coating composition comprises an alkyd resin, an amino resin, and an acetoacetyl-functional silicon-based resin, wherein upon curing, the amino resin itself releases at least 0.8 wt % of formaldehyde, based on the weight of the amino resin; weight ratio of the alkyd resin and the amino resin is in a range of from 70:30 to 45:55. The present disclosure also refers to a coated article.

Disclosed is a paint composition containing graphene oxide for preventing corrosion of a structure and improving water repellency, corrosion proof and long-term durability of a concrete structure. The paint composition includes a powder mixture containing 0.2 to 1.0 weight % of zinc (Zn), 0.02 to 0.3 weight % of graphene oxide, 0.06 to 0.11 weight % of phosphorus, and a remaining amount of aluminum (Al); and an adhesive resin in which the powder mixture is uniformly dispersed.

Disclosed is a paint composition containing graphene oxide for preventing corrosion of a structure and improving water repellency, corrosion proof and long-term durability of a concrete structure. The paint composition includes a powder mixture containing 0.2 to 1.0 weight % of zinc (Zn), 0.02 to 0.3 weight % of graphene oxide, 0.06 to 0.11 weight % of phosphorus, and a remaining amount of aluminum (Al); and an adhesive resin in which the powder mixture is uniformly dispersed.

The present invention relates to a novel and improved, batchwise or continuous, preferably continuous, process for producing single-layer or multilayer lignocellulose materials, comprising the process steps of (Ia) producing a mixture M1 and (Ib) optionally one or more mixture(s) M2, (II) scattering mixture M1 and any mixture(s) M2 to give a mat, (III) optionally precompacting the scattered mat and (IV) hot pressing,

in that mixture M1 comprises the lignocellulose particles (component LCP-1) and additionally a) 0.005% to 0.5% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof (component A) b) 0.05% to 3% by weight of organic isocyanates having at least two isocyanate groups (component B) and c) 5% to 15% by weight of binder selected from the group of the amino resins (component C) d) 0% to 2% by weight of hardener (component D) and e) 0% to 5% by weight of additive (component E),

and mixture(s) M2 comprise(s) the lignocellulose particles (component LCP-2) and additionally f) 0% to 0.3% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof (component F), g) 1% to 30% by weight of binder selected from the group consisting of amino resin, phenolic resin, protein-based binder and other polymer-based binders or mixtures thereof (component G-1) and 0% to 3% by weight of organic isocyanate having at least two isocyanate groups (component G-2), h) 0% to 2% by weight of hardener (component H) and i) 0% to 5% by weight of additives (component I),

with the proviso that the following conditions are fulfilled:

a.sub.min<a<a.sub.max

and

a.sub.min=[(1/6000.Math.T)+(65/6000)1, preferably a.sub.min=[(1/4500.Math.T)+(65/4500)], more preferably a.sub.min=[(1/3500.Math.T]+(65/3500)]

and

a.sub.max=[(1/2000.Math.T)+(75/2000)], preferably a.sub.max=[(1/2500.Math.T)+(75/2500)], more preferably a.sub.max=[(1/3000.Math.T)+(75/3000)], where T is the temperature of mixture M1 in C. after process step (Ia) and is between 10 and 65 C., preferably 12 and 62 C., more preferably 15 to 60 C., and a is the amount of acid equivalents in component A) in relation to the mass of component C) in m