Abstract: The present invention provides a filter element and a method for producing the same, which do not generate pollution during waste disposal, can be easily produced, improve the pressure loss and reduce the production cost. The filter element and the method for producing the same are characterized in that ultrahigh molecular weight polyethylene fine powders, which have an average molecular weight of 3,000,000 to 11,000,000 and a bulk specific gravity of 0.15 to 0.29, are the aggregate of primary particles, and are shaped to have voids of 1 to 5 ?m in a part where the primary particles are connected, are filled into the pores on the surface of a filter element base made of an open-cell porous molded body prepared by heating and sintering synthetic resin powders, a non-woven fabric or a felt.

Abstract: A subject for the invention is to provide a low-cost heat-resistant filter element produced from polyethylene particles which is for use in separating and collecting particles from a dust gas, can be continuously used even in a high-temperature environment of about from 70° C. to 130° C., especially from 90° C. to 110° C., is excellent in chemical resistance, and has flexibility and excellent suitability for mass production. Another subject is to provide processes by which the heat-resistant filter element can be produced at a reduced equipment cost while taking care of the environment. In the invention, a coating layer of a fluororesin was formed on a surface of a permeable porous molding obtained from particles of a resin composition containing a polyethylene as a main component of a resin ingredient and from 0.1 to 3 parts by weight of an antioxidant per 100 parts by weight of the resin ingredient by fusion-bonding the particles to one another at the surface thereof.

Abstract: On a wafer holding area 50 on the upper surface of a susceptor 22, a wafer W is supported by a wafer support 54 such that a gap with a predetermined distance is formed between the wafer W and a wafer heating surface 52. A projection 58 that decreases the distance of the gap with respect to the wafer W is formed on the wafer heating surface 52. At this time, the heating condition for the wafer W by the susceptor 22 is adjusted by means of the distances of the gaps at the respective portions of the wafer holding area 50. Thus, the uniformity of the planar temperature distribution of the wafer W and that of the thickness distribution of the formed film can be improved.

Abstract: The subject invention provides a method for separating a terpene trilactone from Ginkgo biloba plant material or from an extract of Ginkgo biloba comprising a mixture of terpene trilactones, the process comprising the steps of: a) subjecting the Ginkgo biloba plant material or the extract to column chromatography with an appropriate solvent system to produce at least a first fraction containing the terpene trilactone bilobalide, a second fraction eluted after the first fraction containing the terpene trilactones GA and GB, and a third fraction eluted after the second fraction containing at least a preponderance of the terpene trilactones GC and GJ; and b) alkylating the terpene trilactone GB of the second fraction so as to produce a first mixture including terpene trilactone GA and alkylated terpene trilactone GB; or alkylating the terpene trilactone GC of the third fraction so as produce a second mixture including terpene trilactone GJ and alkylated terpene trilactone GC, so as to thereby isolate a terpene t

Abstract: An addition-curable organopolysiloxane resin composition having, in a state of cued body, a hardness of 60 to 100 at 25 degree C. and 40 to 100 at 150 degree C. as measued in accordance with the provisions of ASTM D2240-86, said composition comprising: (A) 100 parts by weight of an organopolysiloxane resin comprised of at least alkenyl groups and phenyl groups; (B) 10 to 50 parts by weight of an organooligosiloxane comprised of at least alkenyl groups and phenyl groups; (C) 20 to 100 parts by weight of an organohydrogenoligosiloxane or organohydrogenpolysiloxane; and (D) an addition-reaction catalyst in a catalytic quantity; an optical material that is comprised of a cured body producted from aforementioned components (A), (B), and (C) and posseses the aforementioned characteristics.

Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) an organopolysiloxane having 1.5 or more end groups having at least one hydroxyl group on the average; (B) a silane or a siloxane oligomer having three or more silicon-bonded hydrolyzable groups; (D) an inorganic powder; and either (C) microparticles of thermoplastic resin containing a platinum compound having an average diameter from 0.1 to 20 ?m; or (C1) a platinum compound; and (C2) an organosiloxane oligomer which contains aryl and alkenyl groups and has 8 or less silicon atoms in each molecule and which contains in each molecule at least one divalent organosiloxane as represented by the formula: —(R2)(R3)SiO—(R2)(R3)Si—, (where R2 is an aryl group, and R3 is an alkenyl group), in a quantity of at least 2 moles of component (C2) per 1 mole platinum atoms in component (C1).

Abstract: Addition-curable organopolysiloxane resin composition comprising an organopolysiloxane resin that contains at least alkenyl, hydroxyl, and phenyl directly bonded to silicon of which at least 30 mole % is phenyl; an organohydrogenoligosiloxane or organohydrogenpolysiloxane that contains at least phenyl directly bonded to silicon of which at least 20 mole % is phenyl; and an addition reaction-curing catalyst.

Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) an organopolysiloxane having 1.5 or more end groups having at least one hydroxyl group on the average; (B) a silane or a siloxane oligomer having three or more silicon-bonded hydrolyzable groups; (D) an inorganic powder; and either (C) microparticles of thermoplastic resin containing a platinum compound having an average diameter from 0.1 to 20 ?m; or (C1) a platinum compound; and (C2) an organosiloxane oligomer which contains aryl and alkenyl groups and has 8 or less silicon atoms in each molecule and which contains in each molecule at least one divalent organosiloxane as represented by the formula: —(R2)(R3)SiO—(R2)(R3)Si—, (where R2 is an aryl group, and R3 is an alkenyl group), in a quantity of at least 2 moles of component (C2) per 1 mole platinum atoms in component (C1).

Abstract: The subject invention provides compounds having the structure: wherein R1 is H, OH, a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety; R2 is H, OH, a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety; R3 is H or OH; R4 is H, OH, a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety; and wherein at least one of R1, R2, R3, or R4 is a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety, or an optically pure enantiomer of the compound or wherein R1 is H or OH; R2 is H, OH, halogen, unsubstituted or substituted, straight or branched (C1-C5) alkyl group, (C2-C5) alkenyl, or a (C2-C5) alkynyl, (C1-C5) alkoxy, (C2-C5) alkenyloxy, or (C2-C5) alkynyloxy, —N3, —COR5, —CONR5R6, —CO2R5, —OCOR5, —NH(OH), —NR5R6, —NHCOR5, —N(OH)COR5, —CH2OR5, —OCH2CO2R5, —CH2SR5, —CH2NR5R6, —SR5, —OSR5, or —NR5SO2R6, where R5 and R6 are each independently hydrogen, substituted or unsubstituted (C1-C5) alkyl, (C2-C5) alkenyl, or (C2-C5) alkynyl, or a cycl

Abstract: The subject invention provides compounds having the structure: wherein R1 is H, OH, a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety; R2 is H, OH, a photoactivatable moiety, a fluorescent-moiety, or a radioactive moiety; R3 is H or OH; R4 is H, OH, a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety; and wherein at least one of R1, R2, R3, or R4 is a photoactivatable moiety, a fluorescent moiety, or a radioactive moiety, or an optically pure enantiomer of the compound or wherein R1 is H or OH; R2 is H, OH, halogen, unsubstituted or substituted, straight or branched (C1–C5) alkyl group, (C2–C5) alkenyl, or a (C2–C5) alkynyl, (C1–C5) alkoxy, (C2–C5) alkenyloxy, or (C2–C5) alkynyloxy, —N3, —COR5, —CONR5R6, —CO2R5, —OCOR5, —NH(OH), —NR5R6, —NHCOR5, —N(OH)COR5, —CH2OR5, —OCH2CO2R5, —CH2SR5, —CH2NR5R6, —SR5, —OSR5, or —NR5SO2R6, where R5 and R6 are each independently hydrogen, substituted or unsubstituted (C1–C5) alkyl, (C2–C5) alkenyl, or (C2–C5) alkynyl, or a cyclo

Abstract: The present invention relates to a silicone resin composition of low melt viscosity and excellent reactivity and dispersibility in organic resins. The present invention also relates to a curable resin composition for forming a cured resin of excellent moldability and superior flame retardant properties while having little adverse impact on the human body and the environment as a result of containing no antimony oxides or halogenated epoxy resins. The present invention also relates to a cured resin having little adverse impact on the human body or the environment and possessing superior flame retardant properties.

Abstract: A curable epoxy resin composition comprising at least: (A) a crystalline epoxy resin, (B) a phenol resin, and (C) a silicone resin composed of epoxy-containing organic groups and phenyl groups that define an average unit formula of this component. Component (C) is used in an amount of 0.1 to 500 parts by weight for 100 parts by weight of the sum of weights of components (A) and (B). The composition of the invention is suitable for transfer and injection molding and may find use as a curable epoxy resin composition for sealing parts of electrical and electronic devices.

Abstract: A subject for the invention is to provide a low-cost heat-resistant filter element produced from polyethylene particles which is for use in separating and collecting particles from a dust gas, can be continuously used even in a high-temperature environment of about from 70° C. to 130° C., especially from 90° C. to 110° C., is excellent in chemical resistance, and has flexibility and excellent suitability for mass production. Another subject is to provide processes by which the heat-resistant filter element can be produced at a reduced equipment cost while taking care of the environment. In the invention, a coating layer of a fluororesin was formed on a surface of a permeable porous molding obtained from particles of a resin composition containing a polyethylene as a main component of a resin ingredient and from 0.1 to 3 parts by weight of an antioxidant per 100 parts by weight of the resin ingredient by fusion-bonding the particles to one another at the surface thereof.

Abstract: The present invention provides a filter element and a method for producing the same, which do not generate pollution during waste disposal, can be easily produced, improve the pressure loss and reduce the production cost. The filter element and the method for producing the same are characterized in that ultrahigh molecular weight polyethylene fine powders, which have an average molecular weight of 3,000,000 to 11,000,000 and a bulk specific gravity of 0.15 to 0.29, are the aggregate of primary particles, and are shaped to have voids of 1 to 5 ?m in a part where the primary particles are connected, are filled into the pores on the surface of a filter element base made of an open-cell porous molded body prepared by heating and sintering synthetic resin powders, a non-woven fabric or a felt.

Abstract: A method of isolating terpene trilactones from Ginkgo biloba plant material or extract comprising the steps of suspending the plant material or extract in either water or an aqueous solution of an oxidation reagent; extracting the terpene trilactones using an acceptable extraction agent; separating the organic layer from the aqueous layer; washing the organic layer with an acceptable aqueous salt or hydroxide solution, which may be an alkaline solution; and drying the organic layer to form a dried extract containing terpene trilactones. Further purification by treatment with or filtration over activated charcoal, by treatment with or filtration over alumina and by recrystallization with an acceptable solvent or solvent mixture leads to extracts with a content of terpene trilactones higher than 50%. Unwanted levels of ginkgolic acids are reduced to acceptable levels by reversed phase chromatography.

Abstract: The subject invention provides ginkgolide C derivatives compounds having the structure: wherein R is H or -A-Ar, where A is an alkyl group; and Ar is an aryl group, which may contain heteroatoms and may be unsubstituted or substituted by one to five substituents each selected from the group consisting of hydrogen, alkoxy, —CH2CO2R4, and —CH2CONR5R6; where R4 is an alkyl group; and R5 and R6 are each, independently, hydrogen or a branched or unbranched alkyl group; wherein R1 is H or —COR7, where R7 is alkyl, aryl or amino; wherein R2 is present or absent, and when present is H, —COR8 or —CO-Z-R8; where R8 is alkyl, aryl or amino; and Z is oxygen; wherein R3 is present or absent, and when present is —COR9; where R9 is alkyl or aryl; wherein only one of R2 or R3 is present in the compound; wherein only two of R, R1, R2 and R3 are H; and wherein each of a and b designates a single covalent bond which is present or absent, where bond a is present when R3 is absent and bond b is prese

Abstract: The present invention relates to a silicone resin composition of low melt viscosity and excellent reactivity and dispersibility in organic resins. The present invention also relates to a curable resin composition for forming a cured resin of excellent moldability and superior flame retardant properties while having little adverse impact on the human body and the environment as a result of containing no antimony oxides or halogenated epoxy resins. The present invention also relates to a cured resin having little adverse impact on the human body or the environment and possessing superior flame retardant properties.

Abstract: A method of isolating terpene trilactones from Ginkgo biloba plant material or extract comprising the steps of suspending the plant material or extract in either water or an aqueous solution of an oxidation reagent; extracting the terpene trilactones using an acceptable extraction agent; separating the organic layer from the aqueous layer; washing the organic layer with an acceptable aqueous salt or hydroxide solution, which may be an alkaline solution; and drying the organic layer to form a dried extract containing terpene trilactones. Further purification by treatment with or filtration over activated charcoal, by treatment with or filtration over alumina and by recrystallization with an acceptable solvent or solvent mixture leads to extracts with a content of terpene trilactones higher than 50%. Unwanted levels of ginkgolic acids are reduced to acceptable levels by reversed phase chromatography.

Abstract: A curable epoxy resin composition comprising at least: (A) a crystalline epoxy resin, (B) a phenol resin, and (C) a silicone resin composed of epoxy-containing organic groups and phenyl groups that define an average unit formula of this component. Component (C) is used in an amount of 0.1 to 500 parts by weight for 100 parts by weight of the sum of weights of components (A) and (B). The composition of the invention is suitable for transfer and injection molding and may find use as a curable epoxy resin composition for sealing parts of electrical and electronic devices.

Abstract: The present invention relates to an adhesive resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic, the thermoplastic resin (B) having a melting point ranging from 90° C. to 200° C. The present invention also relates to a method for separating a bonded article into adherends, the method comprising detaching by induction heating the bonded portions of adherends bonded together by the thermoplastic resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic substance and has a melting point ranging from 90° C. to 200° C.