Abstract: A new class of polymerizable surfactants, useful for modifying the surfaces of polymeric objects, which are described by the formula:DC[A.sub.x B.sub.y ]wherein A is at least one ethylenically unsaturated hydrophilic monomer, B is at least one ethylenically unsaturated hydrophobic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1. Also disclosed are random copolymer precursors of such polymerizable surfactants.

Abstract: A method of modifying surfaces of polymeric objects which comprises immersing the polymeric object in an aqueous dispersion of a polymerizable surfactant, a cross-linking agent, and a free radical initiator and exposing the immersant to ultraviolet light to form a permanent, cross-linked surface coating on the object. Also disclosed are coated objects prepared by this method, which is particularly suited for coating contact lenses.

Abstract: The present invention relates to oil solubilization agents for solubilizing oil into an aqueous solution in which the oil solubilization agents are diblock polymers of t-butylstyrene/metal styrene sulfonate and triblock polymers of t-butylstyrene/metal styrene sulfonate/t-butylstyrene.

Abstract: The present invention relates to viscosification agents for water which are diblock polymers of t-butylstyrene/metal styrene sulfonate and triblock polymers of t-butylstyrene/metal styrene sulfonate/t-butylstyrene.

Abstract: Dithiophosphates of the general formula: ##STR1## wherein R' is methyl or ethyl; R" is primary or secondary C.sub.3 -C.sub.4 alkyl; Q is a C.sub.1 -C.sub.4 alkylene; y is 0-2; R.sub.1 is C.sub.1 -C.sub.4 alkyl and aryl are novel compounds having excellent pesticidal properties against insects, mites and nematodes. O-Ethyl S'-n-propyl S-alkylthioalkyl dithiophosphates in which each alkyl group has from 1 to 3 carbon atoms, are especially outstanding as pesticides of reduced mammalian toxicity and are useful in the control of the highly pesticide resistant insects of the Order of Lepidoptera.

Abstract: Dithiophosphates of the general formula: ##STR1## wherein R' is methyl or ethyl; R" is primary or secondary C.sub.3 -C.sub.4 alkyl; Q is a C.sub.1 -C.sub.4 alkylene; y is 0-2; R.sub.1 is C.sub.1 -C.sub.4 alkyl and aryl are novel compounds having excellent pesticidal properties against insects, mites and nematodes. O-Ethyl S'-n-propyl S-alkylthioalkyl dithiohosphates in which each alkyl group has from 1 to 3 carbon atoms, are especially outstanding as pesticides of reduced mammalian toxicity and are useful in the control of the highly pesticide resistant insects of the Order of Lepidoptera.

Abstract: Thiolphosphoric acid esters of the formula ##STR1## wherein R.sub.1 represents methyl or ethyl,R.sub.2 represents propyl or butyl,R.sub.3 is a radical having the formula: ##STR2## or ##STR3## IN WHICH R.sub.4 represents allyl, methallyl, --CH.sub.2 CN, or ##STR4## R.sub.5 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, nitro, cyano, methylmercapto or C.sub.1 -C.sub.5 carboalkoxy,R.sub.6 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl or --COCH.sub.3,X represents oxygen or sulphur, andm and n each denote the number 1 or 2, process for their production and their use in the control of pests.

Abstract: Thiolphosphoric acid esters of the formula ##EQU1## wherein R.sub.1 represents methyl or ethyl,R.sub.2 represents propyl or butyl,R.sub.3 is a radical having the formula: ##SPC1##In whichR.sub.4 represents allyl, methallyl, --CH.sub.2 CN, or ##EQU2## R.sub.5 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, nitro, cyano, methylmercapto or C.sub.1 -C.sub.5 carboalkoxy,R.sub.6 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl or --COCH.sub.3,X represents oxygen or sulphur, andm and n each denote the number 1 or 2, process for their production and their use in the control of pests.

Abstract: Thiolphosphoric acid esters of the formula ##EQU1## wherein R.sub.1 represents methyl or ethyl,R.sub.2 represents propyl or butyl,R.sub.3 is a radical having the formula: ##SPC1##In whichR.sub.4 represents allyl, methallyl, -CH.sub.2 CN, or ##EQU2## R.sub.5 represents hydrogen, halogen, C.sub.1 -C.sub. -alkyl, nitro, cyano, methylmercapto or C.sub.1 -C.sub.5 carboalkoxy,R.sub.6 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl or -COCH.sub.3,X represents oxygen or sulphur, andm and n each denote the number 1 or 2,Process for their production and their use in the control of pests.

Abstract: Compounds characterized by the following formula: ##SPC1##Wherein R and R' can be selected from the group consisting of C.sub.1 to C.sub.15 hydrocarbyl, preferably C.sub.1 to C.sub.6 alkyl, C.sub.3 to C.sub.7 cycloalkyl, phenyl optionally substituted by chlorine, bromine, nitro, cyano, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy or C.sub.1 to C.sub.6 alkylthio; R and R' may form together a carbocyclic ring of from 3 to 8 carbon atoms. In addition, R can also be hydrogen. R" can be a C.sub.1 to C.sub.6 alkyl group optionally substituted by chlorine, bromine or cyano; phenyl optionally substituted by chlorine, bromine or nitro, R"' can have the same definition as R" and can be in addition a C.sub.1 to C.sub.6 alkoxy, C.sub.1 to C.sub.4 alkylthio and phenoxy optionally substituted by chlorine, bromine or nitro; X can be oxygen or sulfur.These compounds have been found to possess pesticidal activity, particularly insecticidal, miticidal and nematocidal activity.