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1. 发明专利

JPH07305183A ETCHING COMPOSITION 失效
公开(公告)号：JPH07305183A
公开(公告)日：1995-11-21
申请号：JP12173894
申请日：1994-05-10
申请人： OTSUKA CHEMICAL CO LTD
发明人： FUKUMURA KAZUNORI , YOSHIOKA HIROTOMO , FUKUMURA YOSHIHITO , KOBAYASHI MASAHIRO
IPC分类号： C23F1/14
摘要： PURPOSE:To obtain an etching compsn. effective in etching plastic by using one or more kinds of org. solvents selected from among cyclic satd. hydrocarbons, alicyclic amines, trialkylamines, phenylalkylamines and cyclic amines as effective components. CONSTITUTION:This etching compsn. contains at least one kind of org. solvent selected from among cyclic satd. hydrocarbons, alicyclic amines, trialkylamines, phenylalkylamines and cyclic amines as an effective component and can uniformly etch the surface of plastic or its molded article independently of shape or size without causing deformation. The cyclic satd. hydrocarbons are preferably 3-6C hydrocarbons. The alicyclic amines are preferably cycloand dicyclohexylamines. The alkyl part of each of the trialkylamines and phenylalkylamines is a 1-4C alkyl. Piperidine and piperadine are suitable for use as the cyclic amines.

2. 发明专利

JPH08132093A DETERGENT COMPOSITION 失效
公开(公告)号：JPH08132093A
公开(公告)日：1996-05-28
申请号：JP27460794
申请日：1994-11-09
申请人： OTSUKA CHEMICAL CO LTD
发明人： FUKUMURA KAZUNORI , FUKUMURA YOSHIHITO , YOSHIOKA HIROTOMO , KOBAYASHI MASAHIRO
IPC分类号： C02F5/08 , C02F1/50 , C02F5/10 , C11D7/16 , C11D7/18 , C11D7/32
摘要： PURPOSE: To obtain a detergent composition capable of efficiently removing a slime consisting of the algae and bacteria generated in various service water lines, a scale consisting of metal oxide and rust by using hydrogen peroxide, condensed ammonium phosphate and urea compd. respectively as the effective components. CONSTITUTION: The slime consisting of algae and bacteria, scale consisting of the oxide of metal such as Ca and Fe and rust generated in a pipeline in the various service water lines such a heat exchanger are efficiently removed by this detergent composition. Namely, hydrogen peroxide, condensed ammonium phosphate and urea compd. are respectively used as the effective component of the composition. The content of hydrogen peroxide is controlled to 1-35wt.%, that of condensed ammonium phosphate to 30-60wt.% and that of urea compd. to 1-20wt.%. The urea compd. is at least one kind selected from urea, biuret and triuret, and further a hydrogen peroxide decomposing enzyme and/or a rustinhibiting agent can be incorporated into the composition.

3. 发明专利

JPH07278769A COMPOSITION FOR TREATMENT BEFORE PLATING 失效
公开(公告)号：JPH07278769A
公开(公告)日：1995-10-24
申请号：JP7068694
申请日：1994-04-08
申请人： OTSUKA CHEMICAL CO LTD
发明人： FUKUMURA KAZUNORI , YOSHIOKA HIROTOMO , FUKUMURA YOSHIHITO , KOBAYASHI MASAHIRO , YOSHIDA YUTAKA
IPC分类号： C23C18/22 , C23C2/02 , C23C2/30 , C23F1/14 , C23G5/036
摘要： PURPOSE:To obtain a compsn. for treatment before plating with which washing and etching treatments of metal are simultaneously executable and a uniform plating film is obtainable by using a condensed ammonium phosphate, urea or its deriv. and chelating agent as effective components. CONSTITUTION:The compsn. for treatment before plating with which degreasing and etching of the metal are simultaneously and safely executable, the water washing after the treatment is easy and the uniform plating film is formable regardless of the kinds of plating is obtd. by using at least one kind of the condensed ammonium phosphate, the urea and its deriv. and the chelating agent as effective components. The condensed ammonium phosphate having a degree of condensation of 3 to 150 is preferable. Biuret or triuret is adequate as the deriv. of the urea. Further, the chelating agent is preferably an EDTA or its alkaline metal salt. The compsn. which contains, for example, 0.01 to 50wt.% condensed ammonium phosphate, 0.1 to 20% urea or its deriv. and 0.01 to 20% chelating agent is used.

4. 发明专利

JPH08253402A SLIME CONTROL AGENT 失效
公开(公告)号：JPH08253402A
公开(公告)日：1996-10-01
申请号：JP5910495
申请日：1995-03-17
申请人： OTSUKA CHEMICAL CO LTD
发明人： KOBAYASHI MASAHIRO , YOSHIOKA HIROTOMO , HAYASHI HIROYASU , KITAJIMA TAKASHI
IPC分类号： C02F1/50 , A01N33/26 , A01N47/34
摘要： PURPOSE: To provide a slime control agent containing a hydrazine derivative having a specific structure as an active ingredient, exhibiting an excellent slime generation-preventing performance and an excellent slime control performance, high in safety, and not giving a bad effect to worker and environment. CONSTITUTION: The slime control agent contain at least one kind of a hydrazine derivative of general formula: R -HN-(CO)n -NH-R (R , R each are H, an alkyl, phenyl, pyridyl, amino, a group of the formula (A is an alkylene; R is OH, amino, carboxyl, -CH NHNH; m is 0-3); n is 0, 1] and its salt as an active ingredient. The hydrazine derivative is preferably benzylhydrazine or tert- butylhydrazine. The salt of the hydrazine derivative is preferably the salt of a sulfonic acid, hydrochloric acid, a carboxylic acid, its acid anhydride (e.g. maleic anhydride), its oligomer or polymer, etc. The hydrazine derivative is preferably added in an amount of approximately 0.1-1000ppm.

5. 发明专利

JPH06304599A TREATMENT OF ORGANIC SLUDGE 失效
公开(公告)号：JPH06304599A
公开(公告)日：1994-11-01
申请号：JP12074893
申请日：1993-04-22
申请人： OTSUKA CHEMICAL CO LTD
发明人： YOSHIOKA HIROTOMO , KOBAYASHI MASAHIRO
IPC分类号： B01D21/01 , C02F11/14
摘要： PURPOSE:To obtain a granulated material easy to treat thereafter and with the water content reduced by adding an acrylic hydrazide high molecular compd. and an amphoteric high molecular compd. to the org. sludge formed by treating the animal blood from the waste water treating plant of the slaughter house, fish processing plant, etc. CONSTITUTION:The org. sludge contg. fat, incapable of being treated with an ordinary high molecular flocculant and used to treat animal blood is flocculated in one step by adding an acrylic hydrazide high molecular compd. (AH polymer) and an amphoteric high molecular compd. (amphoteric compd.) having an anionic group and a cationic group in the molecule. The weight ratio of the AH polymer to amphoteric polymer is controlled to 1: 9 to 9:1 or preferably to(2:8) to (8:2). The total amt. of the polymer to be added is adjusted to 0.3 to 5.0wt.% of the SS (suspended solids). The org. sludge is transformed in this way into a granular flocculated material excellent in properties..

6. 发明专利

JPH0570593A MANUFACTURE OF AROMATIC POLYTHIOETHER 失效
公开(公告)号：JPH0570593A
公开(公告)日：1993-03-23
申请号：JP12887191
申请日：1991-03-15
申请人： OTSUKA CHEMICAL CO LTD
发明人： MURAKAMI AKIHIRO , YOSHIOKA HIROTOMO , KOBAYASHI MASAHIRO
IPC分类号： C08G75/02 , C08G75/06
摘要： PURPOSE:To provide a manufacturing methot of an arom. polythioether melt- moldable which has the higher decomposition temp. than the m.p. solving the problem of the conventional arom. polythioether that the m.p. thereof is equal to the decomposition temp. so that it is decomposed immediately when molten. CONSTITUTION:At least one arom. hydrocarbon selected from among naphthalene, anthracene, biphenyl, triphenyl, diphenyl ether, fluorene and their derivs. having an electron donating substituent (s), methoxy-substd. benzenes, and durene, is oxidatively polymerized with a sulfur compd. with the aid of at least one oxidizing agent selected from among oxygens, metal oxides, permanganic acid and its salts, metal salts, acid salts of hydroxylamine, and hydrogen azide in the presence of the protic acid to manufacture arom. polythioether.

7. 发明专利

JPH07178400A SLUDGE DEHYDRATING AGENT AND TREATMENT OF SLUDGE USING THE SAME 失效
公开(公告)号：JPH07178400A
公开(公告)日：1995-07-18
申请号：JP32735093
申请日：1993-12-24
申请人： OTSUKA CHEMICAL CO LTD
发明人： YOSHIOKA HIROTOMO , FUKUMURA YOSHIHITO , FUKUMURA KAZUNORI , KOBAYASHI MASAHIRO
IPC分类号： C02F11/14 , C08L33/24 , C08L39/00 , C08L39/02
摘要： PURPOSE:To obtain a sludge dehydrating agent capable of further reducing the water content of dehydrated cake of an organic sludge by combining acrylic acid hydrazide based polymer compound with a polymer compound containing vinyl amine unit. CONSTITUTION:The sludge dehydrating agent is obtained by combining the acrylic acid hydrazide based polymer compound (A) with the polymer compound (B) containing vinyl amine unit. The compound (A) is expressed by a formula I [wherein R is H or CH3; A is a monomer unit of acrylamide, methacrylamide, acrylic ester or methacrylic ester; B is acrylic acid or its salt, methacrylic acid or its salt or a monomer unit copolymerizable with A, and (l)-(n) have relations of 0mol%

8. 发明专利

JPH06304474A ADSORBENT FOR OIL 失效
公开(公告)号：JPH06304474A
公开(公告)日：1994-11-01
申请号：JP9765493
申请日：1993-04-23
申请人： OTSUKA CHEMICAL CO LTD
发明人： YOSHIOKA HIROTOMO , KOBAYASHI MASAHIRO
IPC分类号： B01J20/26 , B08B1/00 , D01F6/66
摘要： PURPOSE:To form easily an oil to be removed into a bulky gelated substance by using a fibrous substance or a needle-like crystal of at least one org. compd. selected from poly(p-oxybenzoyl), poly(2-oxy-6-naphthoyl) and poly(oxymethylene). CONSTITUTION:This oil adsorbent is constituted of a fibrous substance or a needle-like crystal of at least one org. compd. selected from poly(p-oxybenzoyl), poly(2-oxy-6-naphthoyl) and poly(oxymethylene). The amt. of use of this oil adsorbent is usually 1-10wt.% to the oil to be treated and pref. 2-5wt.%. In addition, it is possible to make easily an oil to be removed into a bulky gelated substance and to separate and recover it from water by means of a collecting net.

9. 发明专利

JPH07178399A SLUDGE DEHYDRATING AGENT AND TREATMENT OF SLUDGE USING THE SAME 失效
公开(公告)号：JPH07178399A
公开(公告)日：1995-07-18
申请号：JP32734993
申请日：1993-12-24
申请人： OTSUKA CHEMICAL CO LTD
发明人： YOSHIOKA HIROTOMO , FUKUMURA YOSHIHITO , FUKUMURA KAZUNORI , KOBAYASHI MASAHIRO
IPC分类号： C02F11/14 , C08L33/24
摘要： PURPOSE:To obtain a sludge dehydrating agent capable of further reducing the water content of dehydrated cake of an organic sludge by combining acrylic acid hydrazide based polymer compound with an amidine based polymer compound. CONSTITUTION:The sludge dehydrating agent is obtained by combining the acrylic acid hydrazide based polymer compound (A) with the amidine based polymer compound (B). The compound (A) is expressed by a formula I [wherein R is H or CH3; A is a monomer unit of acrylamide, methacrylamide, acrylic ester or methacrylic ester; B is acrylic acid or its salt, methacrylic acid or its salt or a monomer unit copolymereizable with A, and (l)-(n) have relations of 0mol%

10. 发明专利

JPH06304600A TREATMENT OF INORGANIC SLUDGE 失效
公开(公告)号：JPH06304600A
公开(公告)日：1994-11-01
申请号：JP12074993
申请日：1993-04-22
申请人： OTSUKA CHEMICAL CO LTD
发明人： YOSHIOKA HIROTOMO , KOBAYASHI MASAHIRO
IPC分类号： C02F11/14
摘要： PURPOSE:To enhance the efficiency in flocculating and dehydrating sludge by adding a metallic salt, an acrylic hydrazide high molecular compd. and an anionic polymer to the inorg. sludge from a waste water treating plant. CONSTITUTION:Inorg. sludge generated from a river water treating plant and the waste water treating plant of an inorg. material collecting plant is flocculated as follows. Namely, a metallic salt, an acrylic hydrazide high molecular compd. (AH polymer) and an anionic polymer are added to the sludge. A salt of aluminum or iron is preferably used as the metallic salt. Meanwhile, the weight ratio of the AH polymer to anionic polymer is controlled to (1:9) to (9:1) or preferably to (2:8) to (8:2), the total amt. of the polymer to be added is adjusted to 0.3-5.0wt.% of the SS (suspended solids) in the sludge. Consequently, the flocculation rate of the inorg. sludge is enhanced, and its water content is drastically lowered.

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