Abstract:
The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a rheological behavior that makes them suitable for adhesive use, both without and with minimized amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-polymer may be composed of A) from 60 to 94 % of units derived from one alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); the diad distribution of component A in the polymer as determined by 13C NMR as described herein showing a ratio of experimentally determined diad distribution over the calculated Bernoullian diad distribution of less than 1.07; and the storage modulus G' of said polymer, determined upon cooling as described herein, intersecting a value of 3.105 Pa at a temperature of less than 85 DEG C. The invention also describes polymerization processes suitable for the manufacture of these adhesive alpha-olefin inter-polymers.
Abstract translation:本发明涉及新型粘合剂α-烯烃聚合物,它们大部分是无定形的并且具有使其适合于粘合剂使用的流变行为,两者都没有和最少量的增粘树脂。 具体地说,本发明的聚α烯烃聚合物可以由A)60-94%的衍生自一个具有3至6个碳原子的α-单烯烃的单元组成,B)6-40摩尔%衍生的单元 来自一种或多种其它具有4至10个碳原子和至少一个碳原子的单烯烃,比A)多; 和C)任选地0至10mol%衍生自不同于A)和B)的另一种可共聚不饱和烃的单元; 如本文所述通过13 C NMR确定的聚合物中组分A的二元分布显示出实验测定的二元分布在计算的伯努利二元分布上的比率小于1.07; 和在本文所述的冷却下测定的所述聚合物的储能模量G'在小于85℃的温度下与3.105Pa的值相交。本发明还描述了适用于制造这些粘合剂α-烯烃相互作用的聚合方法 聚物。
Abstract:
The use as an additive for wax containing distillate fuel of a compound containing at least 2 substituent groups and having a spacing and configuration such that they may occupy the positions of wax molecules in the intersection of the (001) plane and the (110) and/or (111) planes in crystals of the wax, the substituent groups being alkyl, alkoxy alkyl or polyalkoxy alkyl having at least 10 atoms in the main chain.
Abstract:
A copolymer comprising units of an unsaturated dicarboxylic monomer and an ethylene alpha -olefin macromer is disclosed. The macromer is an unsaturated ethylene alpha -olefin polymer comprising units of from ethylene and at least one alpha -olefin represented by the formula CH2=CHR , wherein R is a C1 to C18 linear alkyl group or a C3 to C18 branched alkyl group; the ethylene alpha -olefin polymer has a number average molecular weight of from about 500 to about 100,000; and at least about 30 % of the unsaturation in the ethylene alpha -olefin polymer is terminal vinylidene. The copolymer has a carbon-carbon backbone and contains succinic groups and hydrocarbyl groups. The copolymer can be derivatized by reaction with nucleophilic reactants including monoamines, polyamines, monoalcohols, polyols, amino alcohols, reactant metal compounds and mixtures thereof. The derivatized copolymers can be post-treated (e.g., borated) with one or more post-treating agents (e.g., boric acid). The copolymer, its derivatives, and post-treated derivatives are useful as additives (e.g., dispersants and viscosity index improvers) in fuels and in lubricating oils.
Abstract:
Distillate fuel oil boiling in the range 120°C to 500°C which has a wax content of at least 0.3 wt.% at a temperature of 10°C below the Wax Appearance Temperature, the wax crystals at that temperature having an average particle size less than 4000 nanometres preferably less than 1000 nanometres.
Abstract:
Petroleum resins are produced by using a supported halide based Lewis acid polymerisation catalyst wherein the Lewis acid is chemically bound to the support and free hydrogen halide and/or alkane formed by the reaction of the Lewis acid with the support has been removed. The more active catalysts are useful with both pure monomer and mixed feeds.
Abstract:
This invention relates to an adhesive composition comprising a copolymer comprising units derived from one or more macromonomers and an unsaturated acid or an unsaturated anhydride wherein the weight average molecular weight of the copolymer is at least twice the weight average molecular weight of the macromonomer, the melt index of the copolymer is 1 dg/min or more, and wherein the macromonomer: (1) has a weight average molecular weight between 500 and 100,000; (2) has at least 30% terminal unsaturation; and (3) comprises a copolymer of ethylene and at least one alpha -olefin, and/or a copolymer of propylene and ethylene or an alpha -olefin.