Abstract:
In one instance, the present disclosure describes a method for preparing a carbonaceous article comprising: providing a crosslinked polyolefin fabricated article; stabilizing the crosslinked polyolefin fabricated article by air oxidation to provide a stabilized fabricated article; treating with a boron-containing liquid (BCL) during or intermediate to at least one of the preceding steps; and carbonizing the stabilized fabricated article. In one instance the present disclosure describes a method for preparing a stabilized article.
Abstract:
Contacting a LIO with a borane isomerization catalyst in a reaction vessel to form a mixture that includes an adduct formed from the LIO and the borane isomerization catalyst, the adduct having an alkyl group bonded to boron at a non-terminal position of the alkyl group, isomerizing the adduct to move the alkyl group bonded to boron to a terminal position of the alkyl group, and dehydroborating the adduct in the presence of a scavenger olefin to form a LAO and a scavenger adduct that is formed from the scavenger olefin and the borane isomerization catalyst.
Abstract:
A silicone-polyolefin composition is disclosed. The silicone-polyolefin composition comprises (A) a polysiloxane, (B) a functionalized polyolefin, and (C) a curable silicone elastomer component. The polysiloxane (A) comprises an average of at least one functional group X per molecule, and the functionalized polyolefin (B) comprises an average of at least one functional group Y per molecule, where the functional group X and functional group Y are reactable to form a bond therebetween. A silicone-polyolefin blend, a curable composition comprising the silicone-polyolefin blend, a cured product of the curable composition, and methods of preparing the silicone-polyolefin blend, curable composition, and cured product are also disclosed.
Abstract:
A method includes the steps of (a) contacting a solvent having a Water Solubility of 1g or greater per 100g of water with a metallosilicate catalyst having an alumina to silica ratio from 5 to 1500; and (b) heating the metallosilicate catalyst to a temperature from 125C to 300C for a period of 0.5 hours to 5 hours.
Abstract:
A resin including up to 99.99 weight percent (wt.%) of a first polyolefin grafted with a functional group selected from an ethylenically unsaturated carboxylic acid, a carboxylic acid anhydride, an ester functional group or a combination thereof; and 0.01 to 3.0 wt.% of a tin oxide-based catalyst, where the resin includes 0.2 wt.% to 1.5 wt.% of the functional group from the first polyolefin, the wt.% based on a total weight of the resin. The first polyolefin can be selected from a polyethylene, a polypropylene, an ethylene/alpha-olefin copolymer, a propylene/alpha-olefin copolymer and combinations thereof. The tin oxide-based catalyst can be selected from dibutyltin oxide, dioctyltin oxide and combinations thereof. The resin can be used in a multilayer structure, where a Layer A comprises the resin and a Layer B comprises a polyester, where a first major surface of Layer A is in adhering contact with the second major surface of Layer B.
Abstract:
In one instance, the present disclosure describes a crosslinked polyolefin article comprising: a carbon to hydrogen mol ratio of from 1:1.2 to 1:2.2; and 0.1 to 5 weight percent boron. In one instance, the present disclosure describes a stabilized polyolefin article comprising: a carbon to hydrogen mol ratio of from 1:0.8 to 1:1.3; greater than 18 weight percent oxygen; and 0.3 to 4weight percent boron.