摘要:
The invention relates to oligomeric polyols that are made from palm-based oils and to polyurethane compositions comprising the oligomeric palm-based polyols. Oligomeric polyols of the invention comprise a ring-opened and oligomerized epoxidized palm-based oil composition comprising about 40% wt. or greater oligomers, a hydroxyl number of about 65 or less, a number average hydroxyl functionality (fn) of about 2.5 or less, and a viscosity at 25° C. of about 4 Pa-s or less.
摘要:
Preparation of derivatives of β-hydroxycarboxylic acid, including β-hydroxycarboxylic acid esters, α,β-unsaturated carboxylic acid, esters of α,β-unsaturated carboxylic acid, and alkoxy derivatives.
摘要:
Preparation of derivatives of β-hydroxycarboxylic acid, including β-hydroxycarboxylic acid esters, α,β-unsaturated carboxylic acid, esters of α,β-unsaturated carboxylic acid, and alkoxy derivatives.
摘要:
Described are methods of making organic compounds by metathesis chemistry. The methods of the invention are particularly useful for making industrially-important organic compounds beginning with starting compositions derived from renewable feedstocks, such as natural oils. The methods make use of a cross-metathesis step with an olefin compound to produce functionalized alkene intermediates having a pre-determined double bond position. Once isolated, the functionalized alkene intermediate can be self-metathesized or cross-metathesized (e.g., with a second functionalized alkene) to produce the desired organic compound or a precursor thereto. The method may be used to make bifunctional organic compounds, such as diacids, diesters, dicarboxylate salts, acid/esters, acid/amines, acid/alcohols, acid/aldehydes, acid/ketones, acid/halides, acid/nitriles, ester/amines, ester/alcohols, ester/aldehydes, ester/ketones, ester/halides, ester/nitriles, and the like.
摘要:
A wax comprises a metathesis product and/or a product that resembles, at least in part, a product which may be formed from a metathesis reaction. The wax may be used to form articles, for example, candles (container candles, votive candles, and/or a pillar candles), crayons, fire logs, or tarts. The wax commonly includes other components in addition to the metathesis product.
摘要:
A method is disclosed for making a polyol comprising: fully-epoxidizing a partially hydrogenated vegetable oil to obtain a fully-epoxidized vegetable oil derivative having an iodine value less than 4 g I2/100 gram, an EOC of from 4.0 to 5.7% and a Gardner color value of 2 or less; and then reacting the fully-epoxidized vegetable oil derivative with a ring opener to form a polyol having a hydroxyl number from 40 to 80 mg KOH/gram, a number average molecular weight of at least 1500 Daltons, a dynamic viscosity less than 10 pascal-seconds, and an EOC below 3.0 wt %.
摘要:
Enhanced oligomeric polyols are reported. The enhanced oligomeric polyols may be prepared by a method comprising the steps of: (a) providing an oligomeric polyol that comprises at least one glycerol fatty acid ester having at least one glycerol fatty acid ester bond; wherein at least 5% of the ethyldenyl groups (*C═C*) in the glycerol fatty acid ester are substituted with a bonding structure selected from the group consisting of: C—*C—C*—C; O—*C—C*—O; C═*C—C*—C, and mixtures thereof, where * is used to denote the original carbon atoms in the ethylidenyl group; and (b) cleaving at least a portion of the glycerol fatty acid ester bonds to form the enhanced oligomeric polyol. The enhanced oligomeric polyols are useful in making polymers such as polyurethanes.
摘要:
A process for producing industrially important chemicals from renewable resources is disclosed. This “biobased” process employs readily available, renewable resources comprising fatty acids rather than exploiting fossil sources, such as coal and petroleum. In one embodiment of the process 1-octene, along with methyl-9-decenoate and butadiene, is produced from linoleic acid via an enzymemediated isomerization reaction, followed by a metathesis reaction with ethylene. Linoleic acid can be isolated from vegetable oils, such as soybean oil.
摘要:
Disclosed is a process for hydrogenating 3-hydroxypropionic acid, or esters thereof, or mixtures of the acid and the ester, in a liquid phase, in the presence of a ruthenium catalyst, alone, or in combination with at least one or more additional metal catalyst wherein the metal is molybdenum, tungsten, titanium, zirconium, niobium, vanadium, chromium, or mixtures of the metals.
摘要:
Described are methods of making organic compounds by metathesis chemistry. The methods of the invention are particularly useful for making industrially-important organic compounds beginning with starting compositions derived from renewable feedstocks, such as natural oils. The methods make use of a cross-metathesis step with an olefin compound to produce functionalized alkene intermediates having a pre-determined double bond position. Once isolated, the functionalized alkene intermediate can be self-metathesized or cross-metathesized (e.g., with a second functionalized alkene) to produce the desired organic compound or a precursor thereto. The method may be used to make bifunctional organic compounds, such as diacids, diesters, dicarboxylate salts, acid/esters, acid/amines, acid/alcohols, acid/aldehydes, acid/ketones, acid/halides, acid/nitriles, ester/amines, ester/alcohols, ester/aldehydes, ester/ketones, ester/halides, ester/nitriles, and the like.