Terpene Compound

Abstract: A cleaning composition is disclosed which is suitable for cleaning flux residue from a printed circuit board and comprises a terpene compound and dibasic ester solvent

Abstract: A two-cycle engine oil composition which comprises a terpene compound selected from the group consisting of terpene hydrocarbons, terpene alcohols and terpene ether incorporated in a lubricant substance selected from the group consisting of a mineral oil, a polyglycol ester, a polyol ester, a phosphate, a dibasic acid ester, a polyolefin and a mixture thereof, the content of the terpene compound being in the range of 2 to 70% by weight based on the total amount of the composition. The two-cycle engine oil can reduce the concentration of smoke in the exhaust gas and provides an exhaust gas free of disagreeable and/or irritating odors which instead has a pleasant smell. The oil also has good detergent dispersing characteristics.

Abstract: The aim of this study is to investigate the efficacy of terpene compound drug (pinene, camphene, borneol, anethole, fenchone and cineol in olive oil) in facilitating spontaneous passage of ureteral calculi through meta-analysis of randomized controlled trials (RCT). Systematic literature search on MEDLINE, EMBASE, OVID, Science Direct, Proquest, Google scholar, Cochrane Library databases and reference list of related literatures were done without language restriction. RCTs on ureterolithiasis medical expulsive therapy (MET) that compare terpene compound drug versus placebo/control group or alpha-blockers were identified. Articles retrieved were critically appraised by two independent reviewers according to Cochrane Collaboration recommendations. Data from included studies were extracted for calculation of risk ratio (RR) and 95 % confidence interval (CI). Effect estimates were pooled using Mantel-Haenszel method with random effect model. Inter-study heterogeneity and publication bias were assessed. The PRISMA guidelines for meta-analysis reporting were followed. Five RCTs (total of 344 subjects) of adequate methodological quality were included. Pooled effect estimates from homogenous studies showed that compared to placebo/control group, patients treated with terpene compound drug had significantly better ureteral calculi spontaneous expulsion rate (pooled RR: 1.34; 95 % CI 1.12, 1.61). Subgroup analysis of studies that compare terpene compound drug with alpha-blockers showed no significant difference (pooled RR: 0.79; 95 % CI 0.59, 1.06), while significant inter-study heterogeneity was noted. Only minor gastrointestinal adverse effect was reported on terpene compound drug use. The results suggest that terpene compound drug as MET is effective in augmenting spontaneous passage of ureterolithiasis. High quality large-scale RCTs comparing alpha-blockers and terpene compound drug are warranted to make a more definitive conclusion.

Abstract: PURPOSE: To obtain a polyol resin composition soluble in a highly safe, high boiling point and low irritative solvent, terpene, capable of forming coating films excellent in corrosion resistance, water resistance, etc., and good in adhesion to various substrates, and useful for coatings, etc., by using an epoxy resin having a terpene phenol structure skeleton in the structure. CONSTITUTION: This resin is obtained by addition-reacting (B) an active hydrogen-containing compound having an active hydrogen reactive with an epoxy group to (A) an epoxy resin having an epoxy equivalent of 200-10000 and having a terpene phenol structure skeleton obtained by adding a (alkyl) phenol compound to a cyclic terpene compound. The component A is preferably the addition reaction product of (i) a polyglycidyl ether consisting of either of a mono(poly)nuclear polyhydric phenol polyglycidyl ether and an aliphatic polyglycidyl ether, concretely, an alkylidenebisphenol polyglycidyl ether of the formula (R1 , R2 are H, alkyl; m is 0-2), to (ii) a terpene phenol compound.