摘要:
An acid decomposable compound of the present invention is a compound having acid decomposable groups and thermally-bond-formable groups in one molecule in a certain order. The acid decomposable compound contains at least a core structure, acid decomposable groups which are binding to the core structure and thermally-bond-formable groups which are binding to the acid decomposable groups, wherein the thermally-bond-formable groups undergo Diels-Alder Reactions, metathesis reactions or other thermal-addition reactions.
摘要:
The present invention relates to a process for improving the shelf life of a hindered phenol antioxidant comprising the step of intimately mixing the hindered phenol antioxidant with a sulfur-containing peroxide decomposer. The inventors have discovered that mixing the peroxide decomposer with the hindered phenol antioxidant reduces the tendency of hindered phenols to yellow with age. This increases the desirability of the hindered phenol because it will not impart color to polymer systems. The present invention also relates to a composition produced from the process described above, and stabilized compositions and additive packages containing the composition produced from the above-described process.
摘要:
Hydroxymethyl-group-containing alicyclic compounds that are useful for making photosensitive resins and other functional polymers. Processes for producing the hydroxymethyl-group-containing alicyclic compounds. Polymerizable alicyclic compounds. The alicyclic moieties in all of these compounds may be a polycyclic ring such as a perhydroindene ring, a decalin ring, a perhydrofluorene ring, a perhydroanthracene ring, a perhydrophenanthrene ring, a tricyclo[5.2.1.02.6]decane ring, a perhydroacenaphthene ring, or a perhydrophenalene ring.
摘要:
Compounds useful as reactive coalescents and methods of improving the stability of reactive coalescents are disclosed. A process for the preparation of low molecular weight polymers which are also useful as reactive coalescents is also disclosed.
摘要:
A novel ester compound having an exo-form 2-alkylbicyclonull2.2.1nullheptan-2-yl ester as the acid-decomposable site is used as a dissolution regulator to formulate a resist composition having a high sensitivity, resolution, etching resistance and storage stability.
摘要:
A method of producing tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde by the hydroformylation of dicyclopentadiene and/or tricyclopentadiene. The tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde in the hydroformylation product liquid are extracted with an extraction solvent comprising a polyhydric alcohol having 2 to 6 carbon atoms. With such extraction, the tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde transfer into the extraction solvent while retaining the catalyst components in the hydroformylation solvent. The controlled extraction atmosphere with an oxygen concentration of 1000 ppm or lower prevents the rhodium compound from transferring into the extraction solvent, thereby avoiding the loss of expensive rhodium. The extraction solvent containing tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde as such can be directly subjected to catalytic hydrogenation to produce corresponding tricyclodecane dimethanol and/or pentacyclopentadecane dimethanol.
摘要:
The invention relates to a novel octafluorotricyclodecane derivative represented by the general formula (1), 1 where R1 is a hydrogen atom, a halogen atom, a hydrocarbon group or a halogenated hydrocarbon group, m is 0 or 1, and R2 is represented by the general formula (2), 2 where R3 is a hydrogen atom or a hydrocarbon group optionally having a substituent. This octafluorotricyclodecane derivative may be useful as a monomer for producing various functional polymers or as a raw material of the same.
摘要:
Intermediate compounds, including 2-(t-butyldimethylsilyloxymethyl)-3,4-null(dimethylmethylene)dioxynull-5-hydroxy-tricyclonull5.2.1.02,6nulldec-8-ene, which are useful for the synthesis of neplanocin A having strong antitumor activity. Improved processes for the preparation of neplanocin A, starting from optically active 2-hydroxymethyl-5-hydroxy-tricyclonull5.2.1.02,6nulldeca-3,8-diene and via a key step comprising a retro-Diels-Alder reaction of the above intermediate.
摘要:
A catalyst composition comprising trifluoromethanesulfonic acid (also referred to as triflic acid) and a sufficient quantity of a substance (also referred to as a retarder) to decrease but not eliminate the catalytic activity of the acid is disclosed. Also disclosed, is a method and composition for condensing a hydroxyaryl with a diene by use of the catalyst composition. The method is capable of producing condensates having: a mole ratio of 1 mole of the diene to one mole of the hydroxyaryl; one mole of diene to two moles of the hydroxyaryl as well as higher molecular weight products such as resins by changes in temperature, time of reaction, type and quantity of retarder and other variables.
摘要:
A novel urethane compound utilized as a raw material of block isocyanate, diisocyanate, developing agent for thermosensible paper, powder paint and the like is provided, and it is a biscarbamate represented by the following general formula (1): (wherein, R1 and R2 may be the same or different and represent a straight or branched alkyl group, (substituted) cycloalkyl group or (substituted) aryl group.). Further disclosed is a method for producing a polycyclic aliphatic diisocyanate by thermally-decomposing a biscarbamate represented by the general formula (1).