Nippon Petrochemicals Company, Limited

Satoshi Narui

Naoya Takahashi

Eiichi Matsuzaka

Atsushi Sato

Shigenobu Kawakami

Keiji Endo

Yasuo Togami

Ryoichi Miura

Pressure-sensitive copying material

Pressure sensitive copy article

The present invention provides a pressure sensitive copy material using an electron accepting developer and an electron donating coupler which develops a color by contacting with the developer, the pressure sensitive copy material being characterized by employing phenyl-sec-butylphenyl-methane as a solvent for the electron donating coupler.

Pressure sensitive copy material

A compounding oil for polymers which can be used as a plasticizer, process oil, thinner, softening agent, extender or the like. The compounding oil of the invention comprises a fraction mainly containing triaryldialkanes and having boiling points in the range of 350.degree. to 450.degree. C., which fraction is prepared by disproportionating a by-product oil fraction at temperatures in the range of 20.degree. to 500.degree. C. in the presence of a disproportionation catalyst, said by-product oil fraction mainly containing diarylalkanes, having boiling points in the range of 260.degree. to 320.degree. C., and being obtained from the process to prepare alkylated monocyclic aromatic hydrocarbons by alkylating monocyclic aromatic hydrocarbons with olefins in the presence of an alkylation catalyst.

Polymer composition

A pressure-sensitive recording material of the type which is prepared by using an electron donating dye-precursor that produces a color when the dye-precursor is brought into contact with an electron accepting color developer. The pressure-sensitive recording material is characterized in that the solvent for said dye-precursor comprises an alkylated fraction which is prepared by alkylating a by-product fraction with at least one alkyl group having 1 to 5 carbon atoms, the by-product fraction containing the components within the boiling range of 255.degree. to 300.degree. C. on the atmospheric pressure basis and being obtained in the process for producing ethylbenzene or ethyltoluene from ethylene and benzene or toluene. The pressure-sensitive recording material of the invention has scarcely offensive odor and can develop a dense color with a higher color developing rate.

Pressure-sensitive recording material

A solvent for the dye of pressure-sensitive recording paper which solvent has no offensive odor and both the color developing rate and the density of developed color are excellent. The solvent is characterized in that it comprises a fraction having boiling points in the range of 270.degree. to 350.degree. C. which is prepared by distilling the heavier products obtained from the process for producing ethyltoluene by alkylating toluene with ethylene in the presence of synthetic zeolite catalyst.

Solvent for the dye of pressure-sensitive recording paper

An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil can be produced inexpensively but has excellent electrical characteristics and it comprises a fraction having boiling points in the range of 350.degree. to 450.degree. C. that is prepared by disproportionating diarylalkane or a hydrocarbon mixture mainly containing the same at temperatures in the range of 20.degree. to 500.degree. C. in the presence of a disproportionation catalyst, said diarylalkane having boiling points in the range of 260.degree. to 320.degree. C.

Growing community of inventors

Ayase, Japan

Satoshi Narui