Abstract: A light color optionally hydrogenated petroleum hydrocarbon resin including an aromatic hydrocarbon component useful for tackifying block copolymers is described which has a softening point of about 0.degree. C. to about 40.degree. C., a number average molecular weight (Mn) of from 350 to 600 and a molecular weight distribution (Mw/Mn) of from 1:1 to about 2.0.

Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefins and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.

Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefines and diolefines and one or more monovinyl aromatic compounds contain from 10 to 30 wt. % of the aromatic are useful as tackifiers in a combination with carboxylated styrene butadiene copolymer to produce aqueous based pressure sensitive adhesives.

Abstract: Petroleum resins of lightened color while retaining satisfactory melting point and compatibility are provided by a process which comprises catalytically polymerizing an aromatic petroleum cracked or reformed fraction, e.g. an aromatic stream boiling between 80.degree. C. and 260.degree. C., sequentially treated with sulfuric Acid followed by distillation to provide an aromatic feedstock portion which is blended with an aliphatic petroleum cracking or reforming fraction feedstock portion containing cationically polymerizable hydrocarbons, less than 0.5 weight percent of cyclodienes and a pentadiene-1,3 to cyclodiene weight ratio of greater than 50, preferably at least 200 in the presence of a Friedel-Craft catalyst into a petroleum resin of lightened color and softening point in the range of 90.degree. C. to 115.degree. C.

Abstract: A light color petroleum hydrocarbon resin including an aromatic hydrocarbon component useful for tackifying block copolymers is described which has a softening point of about 0.degree. C. to about 40.degree. C., a number average molecular weight (Mn) of from 350 to 600 and a molecular weight distribution (Mw/Mn) of from 1:1 to about 2.0.

Abstract: Resins having an improved combination of softening point and tackifying properties together with good color and heat stability are obtained by Freidel-Crafts copolymerization of a C.sub.5 /C.sub.6 unsaturated feed and 5 to 30 wt. % of para methyl styrene.

Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefines and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.

Abstract: A resin aqueous emulsion of a petroleum resin blend having a softening point of less than 85.degree. C. of a resin having a high softening point of at least 90.degree. C. and a resin having a low softening point is realized by utilizing from 3 to 10 parts by weight of an emulsifier consisting essentially of the class nonyl phenol alkoxylated with 10-12 moles of ethylene oxide per mole of nonyl phenol, anionic alkyl aryl sulfonate and mixtures thereof and dispersing a portion of the water as hot water in said blend prior to inversion into said emulsion.

Abstract: High softening point, i.e. greater than 140.degree. C., aromatic petroleum resins are prepared by polymerizing with an AlCl.sub.3 catalyst an unsaturated hydrocarbon mixture of one part of (1) a feedstock fraction obtained from the thermal cracking of petroleum boiling in the range of 135.degree.-220.degree. C. and principally composed of aromatic substituted olefins, e.g. styrene and its derivatives and indenes and its derivatives and from 0.3 to 1 part by weight of (2) oligomers of cyclopentadiene.

Abstract: An aqueous petroleum resin emulsion is realized by the slow addition of part of the water with vigorous agitation to a resin blended with up to 10 weight percent resinplast and in the presence from 3 to 10 weight percent of an emulsifier until inversion and thereafter adding the balance of the water at low agitation and thereafter cooling said emulsion to a temperature at least 20.degree. C. below the softening point of the mixture of emulsifier, resin and resinplast prior to terminating agitation.

Abstract: An aqueous petroleum resin emulsion is realized by the slow addition of part of the water with vigorous agitation to a resin blended with up to 10 weight percent resinplast and in the presence from 3 to 10 weight percent of an emulsifier until inversion and thereafter adding the balance of the water at low agitation and thereafter cooling said emulsion to a temperature at least about 20.degree. C. below the softening point of the mixture of emulsifier, resin and resinplast prior to terminating agitation.

Abstract: This invention relates to emulsion type adhesive compositions which include a metal neutralized sulfonated elastomeric co- or terpolymer, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having about 5 to 6 carbon atoms, the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated co- or terpolymer.

Abstract: An aqueous petroleum resin emulsion is realized by the slow addition of part of the water with vigorous agitation to a resin blended with up to 10 weight percent resinplast and in the presence from 3 to 10 weight percent of an emulsifier until inversion and thereafter adding the balance of the water at low agitation and thereafter cooling said emulsion to a temperature at least about 20.degree. C. below the softening point of the mixture of emulsifier, resin and resinplast prior to terminating agitation.

Abstract: This invention relates to emulsion type adhesive compositions which include a metal neutralized sulfonated elastomeric co or terpolymer, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having about 5 to 6 carbon atoms, the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated co or terpolymer.