摘要:
A heterofunctional poly(alkyleneoxide) according to the invention contains a first polymer terminus containing a protected, unprotected, or derivatized amine or aminoalkyl functionality and a second polymer terminus containing an unsaturated functionality. Reaction products, derivatives, and methods of making these materials are also described.
摘要:
A condensation product having a high epoxy group residual ratio is obtained by accelerating, with use of neither an acid catalyst nor a base catalyst, hydrolysis and condensation reaction of a silyl group in a silane compound containing an epoxy structure-containing group. Then, a cured product is formed, which has high abrasion resistance, high chemical resistance and low cure shrinkage. The condensation product is synthesized from silane compounds at a specific ratio in the presence of a neutral salt catalyst, which silane compounds are represented by General Formula (I) and General Formula (II), respectively, and then cured with use of a curing agent which cures an epoxy group.
摘要:
Reaction products prepared by processes which comprise reacting: A) at least one compound having the general formula I: R 1 (X) 3 (I) wherein each X group independently represents a halogen atom or one X group represents a halogen atom and two X groups represent an epoxy oxygen atom, which is attached to two adjacent carbon atoms in the R 1 group to form an epoxy group, and R 1 is an alkanetriyl group having from 3 to 10 carbon atoms; and B) at least one compound having the general formula II R 2 X(AO) n Y (II) wherein R 2 represents a polyfluorinated organic group having from 1 to 36 carbon atoms and at least two fluorine atoms; X represents -O-, -S-, or NR 3 - where R 3 is hydrogen or a C 1 -C 18 alkyl group; each AO group is independently an ethyleneoxy, 1,2-propyleneoxy, or 1,2-butyleneoxy group, n is a number of from 0 to 200; and Y represents hydrogen, a mercapto group, an amino group or a C 1 -C 6 alkylamino group in place of a terminal -OH group, with the proviso that when Y is a mercapto, amino, or a C 1 -C 6 alkylamino group, n is at least 1; are described.
摘要:
The invention concerns mineral fillers used for making polyurethane foams, and in particular carbonate, hydroxide, silicate, sulphate fillers, and similar mineral fillers. The invention concerns in particular a method for processing mineral fillers with specific particle size distribution using treating agents such as organic phosphate, including a disaggregation step, an optionally a selection step, so as to improve the techniques for manufacturing polyurethane foams either by foaming without swelling auxiliary or with swelling auxiliary, such as CO2, and composite polyurethane, by reducing the time for mixing said processed filler with polyol and other reagents. The invention has numerous uses such as for making block foams or moulded foams, for mattresses and the like, in the car manufacturing industry, for making various industrial parts, etc.
摘要:
Polyoxyethylene derivatives having different functional groups at both ends of the molecule represented by formula (I) and a process for producing the polymers by anionic living polymerization wherein A' and B' each is an amino-protecting group of the organic silyl type; R is hydrogen or C1-6 alkyl; and Y is hydrogen, an alkali metal, or a given functional group. The polymers are especially suitable for use as a medical material.
摘要:
The invention concerns mineral fillers used for making polyurethane foams, and in particular carbonate, hydroxide, silicate, sulphate fillers, and similar mineral fillers. The invention concerns in particular a method for processing mineral fillers with specific particle size distribution using treating agents such as organic phosphate, including a disaggregation step, an optionally a selection step, so as to improve the techniques for manufacturing polyurethane foams either by foaming without swelling auxiliary or with swelling auxiliary, such as CO2, and composite polyurethane, by reducing the time for mixing said processed filler with polyol and other reagents. The invention has numerous uses such as for making block foams or moulded foams, for mattresses and the like, in the car manufacturing industry, for making various industrial parts, etc.
摘要:
A novel polymerizable surfactant represented by the general formula (1): (wherein, R represents a hydrogen atom or a methyl group, Rf represents a hydrocarbon group in which one or more hydrogen atoms are replaced by a fluorine atom or atoms, or an acyl group in which one or more hydrogen atoms are replaced by a fluorine atom or atoms, AO and AO' represent a group selected from an oxyalkylene group having 2 - 4 carbon atoms or a styrene oxide residue, m and m' are 0 or a number between 1 and 1,000, X represents a hydrogen atom or a hydrophilic group).
摘要:
Bis(aminophenoxy)methanes of formula (I), alkyl-substituted derivatives thereof and modified DADPM derived thereof; and conversion of these compounds into polyols and into polyisocyanates, which in turn can be used in the preparation of polyurethanes.