A resist underlayer film-forming composition including: (A) component: an isopoly or heteropoly acid, or a salt thereof, or a combination thereof; and (B) component: polysiloxan, poly hafnium oxide or zirconium oxide, or a combination thereof, wherein an amount of the (A) component is 0.1 to 85% by mass of a total amount of the (A) component and the (B) component; and polysiloxan is a hydrolysis-condensation product of hydrolyzable silane of Formula (1):
R.sup.1.sub.aR.sup.2.sub.bSi(R.sup.3).sub.4−(a+b)  Formula (1)
and a hydrolyzable silane whose (a+b) is 0 is contained in a proportion of 60 to 85 mol % of a total hydrolyzable silane in Formula (1); the poly hafnium oxide is a hydrolysis-condensation product of hydrolyzable hafnium of Formula (2):
Hf(R.sup.4).sub.4  Formula (2)
and the zirconium oxide is a hydrolysis-condensation product of hydrolyzable zirconium of Formula (3) or Formula (4):
Zr(R.sup.5).sub.4  Formula (3)
ZrO(R.sup.6).sub.2  Formula (4)
or a hydrolysis-condensation product of a combination thereof.

A resist underlayer film-forming composition including: (A) component: an isopoly or heteropoly acid, or a salt thereof, or a combination thereof; and (B) component: polysiloxan, poly hafnium oxide or zirconium oxide, or a combination thereof, wherein an amount of the (A) component is 0.1 to 85% by mass of a total amount of the (A) component and the (B) component; and polysiloxan is a hydrolysis-condensation product of hydrolyzable silane of Formula (1):
R.sup.1.sub.aR.sup.2.sub.bSi(R.sup.3).sub.4−(a+b)  Formula (1)
and a hydrolyzable silane whose (a+b) is 0 is contained in a proportion of 60 to 85 mol % of a total hydrolyzable silane in Formula (1); the poly hafnium oxide is a hydrolysis-condensation product of hydrolyzable hafnium of Formula (2):
Hf(R.sup.4).sub.4  Formula (2)
and the zirconium oxide is a hydrolysis-condensation product of hydrolyzable zirconium of Formula (3) or Formula (4):
Zr(R.sup.5).sub.4  Formula (3)
ZrO(R.sup.6).sub.2  Formula (4)
or a hydrolysis-condensation product of a combination thereof.

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one nitrogen linkage; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include pyridyldiamido transition metal complexes, HN5 compounds, and bis(imino)pyridyl complexes. The organosilica material is a polymer of at least one monomer of Formula [Z.sup.1OZ.sup.2SiCH.sub.2].sub.3(1), where Z.sup.1 represents a hydrogen atom, a C.sub.1-C.sub.4alkyl group, or a bond to a silicon atom of another monomer and Z.sup.2 represents a hydroxyl group, a C1-C.sub.4alkoxy group, a C.sub.1-C.sub.6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

A method for producing a glass-like protective layer on an optionally pre-coated metal or glass substrate. The method comprises: (a) mixing one or more defined silicon compounds with NaOH and KOH, (b) adding water to the mixture obtained in (a) to hydrolyze the silicon compound(s), (c) adding at least one defined compound of formula MY.sub.m,
where M is Pb, Ti, Zr, Al or B, to the hydrolyzed mixture obtained in (b), wherein the molar ratio M/Si is from 0.01/1 to 0.04/1, to obtain a coating sol, (d) applying the coating sol obtained in (c) to the substrate, and (e) thermal densification of the coating sol applied in d) at a temperature of from 300° C. to 500° C. to form the glass-like protective layer.

Compositions of curable silicone rubber compounds containing at least one metal siloxane-silanol(-ate) compound, a method for preparing curable silicone rubber compounds containing at least one metal siloxane-silanol(-ate) compound, as well as the use of curable silicone rubber compounds containing at least one metal siloxane-silanol(-ate) compound as a sealant, an adhesive material, a potting compound and/or a coating agent.

The present invention provides highly densified hybrid sol-gel coatings with surfaces functionalised with highly adherent inorganic chemistries. The invention also provides methods for preparing the hybrid sol-gel coatings of the present invention. Advantageous embodiments of the hybrid sol-gel coating and of the method of preparation, respectively, are provided in the dependent claims Preferably, the present invention provides a highly densified hybrid sol-gel coating based on the interconnectivity of two hybrid networks formed from a methacrylate silane and a transition metal complex.

An object of the present invention is to provide a curable coating agent composition excellent in adhesion to a substrate such as a (meth)acrylic resin, appearance of a thick coating film, and friction resistance of a cured coating film. A curable coating agent composition including a silicone oligomer (A) having a hydrolyzable functional group, a condensation reaction catalyst (B), a silane compound (C), and an organic solvent (D), in which the component (C) contains at least one or more of a silane compound (c1) having a primary amino group and a hydrolyzable functional group and at least one or more of a silane compound (c2) having a secondary amino group and a hydrolyzable functional group.

Provided is a laminate having high sterilization resistance and suitable as a medical device constituent component and a medical device including the laminate. The laminate has a substrate, an interlayer on the substrate, and a polymer coating layer on the interlayer. The interlayer has a porous layer including a siloxane compound, and the siloxane compound has at least one of a constituent component derived from a compound bearing a reactive functional group and a hydrolyzable group or a constituent component derived from a compound bearing a hydrolyzable group having a reactive functional group.

I. an inorganic-organic hybrid material obtained from A1. one or more partially hydrolysed alkoxysilanes of the formula (Ia), (R.sup.1O).sub.nSiR.sup.2.sub.3-nR.sup.3 (Ia) A2. optionally one or more partially hydrolysed alkoxysilanes of the formula (Ib), (R.sup.4O).sub.nSiR.sup.5.sub.4-n (Ib) B1. one or more metal alkoxides of the formula (IIa), Ti(OR.sup.6).sub.4 (IIa) B2. optionally one or more metal alkoxides of the formula (IIb), M.sup.+(4-m)(OR.sup.7).sub.4-m (IIb) wherein the symbols and indices have the definitions specified in the description and wherein the molar ratio of Si in components A1 and A2 to Ti in component B1 is 1-20:1; C. one or more oligomeric or polymeric polyols; D. one or more blocked, optionally modified polyisocyanates; and E. optionally one or more monomers, oligomers and/or polymers which have one or more free epoxy groups; II. optionally one or more colorants and III. optionally one or more adjuvants, is suitable especially for the decorative and protective coating of metal, glass and plastics substrates.

A process for preparing a cyclic polysiloxazane is disclosed. The cyclic polysiloxazane may optionally be converted to an a-alkoxy-ou-amino-functional polysiloxane. The cyclic polysiloxazane or the a-alkoxy-oo-amino-functional polysiloxane, may be used as a capping agent for a silanol-functional polyorganosiloxane in a process to make an amino-functional polyorganosiloxane.