A polyphenylene sulfide resin composition for automotive cooling parts contains, with respect to 100 parts by weight of a polyphenylene sulfide resin (A): 30 to 110 parts by weight of glass fibers (B); and 0.1 to 3 parts by weight of a silane compound (C) having a functional group selected from an amino group and an isocyanate group. In this polyphenylene sulfide resin composition, the PPS resin (A) has a number-average molecular weight of 7,000 to 14,000, and gives a residue amount of 0.05 to 1.0% by weight when dissolved in 20-fold amount by weight of 1-chloronaphthalene at 250° C. for 5 minutes and subsequently subjected to heat pressure filtration through a PTFE membrane filter having a pore size of 1 μm.

A polyphenylene sulfide resin composition for automotive cooling parts contains, with respect to 100 parts by weight of a polyphenylene sulfide resin (A): 30 to 110 parts by weight of glass fibers (B); and 0.1 to 3 parts by weight of a silane compound (C) having a functional group selected from an amino group and an isocyanate group. In this polyphenylene sulfide resin composition, the PPS resin (A) has a number-average molecular weight of 7,000 to 14,000, and gives a residue amount of 0.05 to 1.0% by weight when dissolved in 20-fold amount by weight of 1-chloronaphthalene at 250° C. for 5 minutes and subsequently subjected to heat pressure filtration through a PTFE membrane filter having a pore size of 1 μm.

The present disclosure provides a curable silicone rubber composition containing 0.1 to 15 mass % of a biuret compound represented by the general formula: ##STR00001##
wherein R.sup.1 represents the same or different alkyl groups having 1 to 6 carbons, R.sup.2 represents the same or different alkyl groups having 1 to 3 carbons, R.sup.3 represents the same or different alkylene groups having 2 to 6 carbons, and “a” represents the same or different integers of from 0 to 2. The curable silicone rubber composition may be cured by a condensation reaction, an addition reaction, or the like. The curable silicone rubber composition generally has good adhesion to plastics, metals, and the like.

The present disclosure provides a curable silicone rubber composition containing 0.1 to 15 mass % of a biuret compound represented by the general formula: ##STR00001##
wherein R.sup.1 represents the same or different alkyl groups having 1 to 6 carbons, R.sup.2 represents the same or different alkyl groups having 1 to 3 carbons, R.sup.3 represents the same or different alkylene groups having 2 to 6 carbons, and “a” represents the same or different integers of from 0 to 2. The curable silicone rubber composition may be cured by a condensation reaction, an addition reaction, or the like. The curable silicone rubber composition generally has good adhesion to plastics, metals, and the like.

The present disclosure provides a curable silicone rubber composition containing 0.1 to 15 mass % of a biuret compound represented by the general formula: ##STR00001##
wherein R.sup.1 represents the same or different alkyl groups having 1 to 6 carbons, R.sup.2 represents the same or different alkyl groups having 1 to 3 carbons, R.sup.3 represents the same or different alkylene groups having 2 to 6 carbons, and “a” represents the same or different integers of from 0 to 2. The curable silicone rubber composition may be cured by a condensation reaction, an addition reaction, or the like. The curable silicone rubber composition generally has good adhesion to plastics, metals, and the like.

A rubber compounding ingredient containing (A) a compound having a blocked isocyanate group and a hydrolyzable silyl group, such as an organosilicon compound having the following formula (1):

##STR00001##

wherein R.sup.1 is each independently an alkyl group having 1 to 8 carbon atoms, L is a divalent linking group, X is —O— or —NR.sup.2—, Z is a hydrogen atom or a monovalent organic group, R.sup.2 is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group capable of bonding to Z to form a ring structure, and m is an integer of 1 to 3.

A rubber compounding ingredient containing (A) a compound having a blocked isocyanate group and a hydrolyzable silyl group, such as an organosilicon compound having the following formula (1):

##STR00001##

wherein R.sup.1 is each independently an alkyl group having 1 to 8 carbon atoms, L is a divalent linking group, X is —O— or —NR.sup.2—, Z is a hydrogen atom or a monovalent organic group, R.sup.2 is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group capable of bonding to Z to form a ring structure, and m is an integer of 1 to 3.

A rubber compounding ingredient containing (A) a compound having a blocked isocyanate group and a hydrolyzable silyl group, such as an organosilicon compound having the following formula (1):

##STR00001##

wherein R.sup.1 is each independently an alkyl group having 1 to 8 carbon atoms, L is a divalent linking group, X is —O— or —NR.sup.2—, Z is a hydrogen atom or a monovalent organic group, R.sup.2 is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group capable of bonding to Z to form a ring structure, and m is an integer of 1 to 3.

Urea and amine comprising sol-gel hybrid coatings have been developed for numerous applications, including capillary microextraction-high performance liquid chromatographic analysis from aqueous samples. A fused silica capillary may be coated from the inside with surface bonded coating material and may be created by in-situ sol-gel reaction(s). Urea-functionalized coatings can be immobilized on the inner surface of a capillary by condensing silanol groups of capillary and sol-solution. Urea functionalized, sol-gel coated capillaries may be installed, e.g., in HPLC manual injection ports, and optionally pre-concentrated analytes including phenols, ketones, aldehydes, and/or polyaromatic hydrocarbons, from highly polar to non-polar, maybe analyzed by online extraction and high-performance liquid chromatographic. Such coatings may achieve sensitivities with lower detection limits (S/N=3) of 0.10 ng/mL to 14.29 ng/mL, with reproducibilities of <12.0% RSD (n=3), or <10.0% RSD (n=3) by exchanging the capillary of the same size.

Urea and amine comprising sol-gel hybrid coatings have been developed for numerous applications, including capillary microextraction-high performance liquid chromatographic analysis from aqueous samples. A fused silica capillary may be coated from the inside with surface bonded coating material and may be created by in-situ sol-gel reaction(s). Urea-functionalized coatings can be immobilized on the inner surface of a capillary by condensing silanol groups of capillary and sol-solution. Urea functionalized, sol-gel coated capillaries may be installed, e.g., in HPLC manual injection ports, and optionally pre-concentrated analytes including phenols, ketones, aldehydes, and/or polyaromatic hydrocarbons, from highly polar to non-polar, maybe analyzed by online extraction and high-performance liquid chromatographic. Such coatings may achieve sensitivities with lower detection limits (S/N=3) of 0.10 ng/mL to 14.29 ng/mL, with reproducibilities of <12.0% RSD (n=3), or <10.0% RSD (n=3) by exchanging the capillary of the same size.