摘要:
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one nitroso inhibitor of the structure: wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, nitro, nitroso, halogen, COOR wherein R is hydrogen or alkyl, alkyl, and heteroatom-substituted alkyl; or adjacent groups R1, R2, R3, and R4 can be taken together to form a substituted or unsubstituted fused six-membered ring. Also disclosed is a composition of matter comprising: A) an ethylenically unsaturated monomer and B) at least one nitroso compound of the above-described structure.
摘要:
Disclosed herein are p-urea phenyl derivatives of the formula: wherein R1 and R2 are independently selected hydrocarbyl groups. These derivatives are useful as haze reducing agents in propylene polymers and copolymers.
摘要:
Disclosed herein are urea phenyl derivatives of the formula: wherein each R is an independently selected hydrocarbyl group and n is 2 or 3, and their use as nucleating agents for propylene polymers.
摘要:
A composite composition is disclosed that comprises the reaction product of a mixture of a styrenic polymer, as defined herein, a polar component having nucleophilic functional groups, and from 0.5 to 10 wt % of a compatibilizer having the formula: Ry(I)-(styrene)n-[(styrene)m(X)]p-I(Ry) wherein: R is the residue of a nitroxide used to regulate the polymerization of the compatibilizer; I is the residue of a radical initiator used to initiate polymerization of the compatibilizer; n is an integer from 50 to 750; m is an integer from 0 to 10; p is an integer from 1 to 50; and y is an integer from 0 to 1; and X is any polymerized monomeric moiety having at least one functional group capable of reacting with the nucleophilic functional groups present in the polar component of the composite at the temperature at which the composite components are mixed.
摘要:
A method, composition, and article of manufacture are disclosed for improving the physical properties of cellulose fiber-containing material/PVC composites by adding at least one compatibilizer to the composites. The compatibilizer is a maleated styrene/acrylonitrile copolymer.
摘要:
A lubricant composition is disclosed that comprises: (a) a lubricant and (b) at least one molybdenum-containing compound in the form of surface-capped nanosized particles of the general formula: (Z)n(X—R)m wherein Z is an inorganic moiety comprising molybdenum and sulfur in the form of particles having dimensions in the range of from about 1 to about 100 nm; (X—R) is a surface-capping reagent wherein R is a C4 to C20 straight or branched-chain alkyl or alkylated cycloalkyl radical or radicals and X is a functional group capable of specific sorption and/or chemical interaction with molybdenum/sulfur moiety; n is the number of molecules of Z in the particles; m is an integer representing the amount of surface-capping reagents relative to a single particle; and the ratio of m to n is in the range of from about 1:1 to about 10:1.
摘要:
Processes for alkylating hydroxyaryl compounds by reacting a hydroxyaryl with at least one olefin of a complex hydrocarbon stream. The complex hydrocarbon stream preferably comprises a fraction of a cracked hydrocarbon feed stream or the reaction products of a dehydrogenation of a paraffinic feedstock. The olefin of the complex hydrocarbon stream is preferably a branched olefin, e.g., isobutylene or isoamylene. The alkylated compositions are suitable for forming liquid phosphite compositions.
摘要:
Processes for alkylating hydroxyaryl compounds by reacting a hydroxyaryl with at least one olefin of a complex hydrocarbon stream. The complex hydrocarbon stream preferably comprises a fraction of a cracked hydrocarbon feed stream or the reaction products of a dehydrogenation of a paraffinic feedstock. The olefin of the complex hydrocarbon stream is preferably a branched olefin, e.g., isobutylene or isoamylene. The alkylated compositions are suitable for forming liquid phosphite compositions.
摘要:
A pharmaceutical composition comprising ZD6474 or a pharmaceutically acceptable salt thereof, a brittle diluent and a second diluent which is practically insoluble and has ductile compression properties.