Abstract:
A chemical mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of an organic polymeric compound as a dispersing agent or charge reversal agent comprising a phosphonate (P(=O)(OR1)(OR2) ) or phosphonic acid ( P(=O)(OH)2) moiety or their deprotonated forms as pendant groups, wherein R 1 is alkyl, aryl, alkylaryl, or arylalkyl, R 2 is H, alkyl, aryl, alkylaryl, or arylalkyl, and (C) an aqueous medium.
Abstract:
The invention relates to a nanoporous polymer foam with an average pore diameter ranging between 10 and 1000 nm, obtained according to a method that comprises the following steps: a) preparation of a solution of a reactive polycondensation resin in an organic solvent; b) mixing of the solution with a curing catalyst for the reactive polycondensation resin and curing of the reactive components to form a gel; and c) removal of the organic solvent. The invention also relates to the use of said foams for thermal insulation.
Abstract:
A chemical mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of an organic polymeric compound as a dispersing agent or charge reversal agent comprising a phosphonate (P(═O)(OR1)(OR2) or phosphonic acid (P(═O)(OH)2) moiety or their deprotonated forms as pendant groups, wherein R1 is alkyl, aryl, alkylaryl, or arylalkyl, R2 is H, alkyl, aryl, alkylaryl, or arylalkyl, and (C) an aqueous medium.
Abstract:
A paper coating slip additive obtainable by free-radical polymerization, its preparation and its use in paper coating compositions are described. The additive is formed from (a) acid monomers selected from ethylenically unsaturated C3 to C8 carboxylic acids, (b) associative monomers of the general formula H2C═CR1—COO-(EO)n—(PO)m—R2 where R1 is hydrogen or methyl, n is at least two, m is from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R2 is a C8-C30 alkyl group or a C8-C30 alkaryl group, and (c) nonionic copolymerizable monomers other than a) and b), wherein said additive has a weight average molecular weight of below 200 000 and wherein tert-dodecyl mercaptan is used as chain transfer agent.
Abstract:
An aqueous chemical mechanical polishing (CMP) agent (A) comprising solid particles (a1) containing (a11) a corrosion inhibitor for metals, and (a12) a solid material, the said solid particles (a1) being finely dispersed in the aqueous phase; and its use in a process for removing a bulk material layer from the surface of a substrate and planarizing the exposed surface by chemical mechanical polishing until all material residuals are removed from the exposed surface, wherein the CMP agent exhibits at the end of the chemical mechanical polishing, without the addition of supplementary materials, - the same or essentially the same static etch rate (SER) as at its start and a lower material removal rate (MRR) than at its start, - a lower SER than at its start and the same or essentially the same MRR as at its start or - a lower SER and a lower MRR than at its start; such that the CMP agent exhibits a soft landing behavior.
Abstract:
The invention relates to a method for production of organic xerogels comprising: (a) preparation of a composition containing an organic gel precursor (A) and a solvent (C), (b) reaction of the gel precursor (A) in the presence of the solvent (C) to give a gel, (c) modifying the obtained gel by means of at least one organic compound (D), which is not added in step (a) nor in step (b), (d) drying the modified gel by transforming the solvent (C) into the gaseous phase at a temperature and a pressure below the critical temperature and critical pressure of the solvent (C). The invention further relates to the organic xerogels thus obtained and the use thereof as insulation.
Abstract:
The invention relates to a nanoporous polymer foam with an average pore diameter ranging between 10 and 1000 nm, obtained according to a method that comprises the following steps: a) preparation of a solution of a reactive polycondensation resin in an organic solvent; b) mixing of the solution with a curing catalyst for the reactive polycondensation resin and curing of the reactive components to form a gel; and c) removal of the organic solvent. The invention also relates to the use of said foams for thermal insulation.