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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Aizawa; Toshiyuki
Address:
Oita, JP
No. of patents:
16
Patents:












Patent Number Title Of Patent Date Issued
6291712 Process for producing saturated aliphatic carboxylic acid amide September 18, 2001
A process for producing a saturated aliphatic carboxylic acid amide, comprising reacting a saturated aliphatic carboxylic acid with ammonia to thereby obtain a saturated aliphatic ammonium carboxylate and subjecting the saturated aliphatic ammonium carboxylate to a dehydration reaction f
6166253 Process for producing N-(1-alkoxyethyl)carboxylic amides December 26, 2000
A process for producing N-(1-alkoxyethyl)carboxylic amides by reacting alcohols of 1-5 carbon atoms with N-vinylcarboxylic amides in the presence of an acidic catalyst, or by utilizing unreacted starting material, unreacted intermediate or unrecovered product for synthesis of N-(1-al
6153708 Highly polymerizable N-vinlycarboxylic acid amide and production process thereof November 28, 2000
A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizab
6143836 Highly polymerizable N-vinylcarboxylic acid amide and production process thereof November 7, 2000
A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizab
6072084 Highly polymerizable N-vinylcarboxylic acid amide and production process thereof June 6, 2000
A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizab
5892115 Highly polymerizable N-vinylcarboxylic acid amide and production process thereof April 6, 1999
A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizab
5852214 Process for producing n-(1-alkoxyethyl) carboxylic amides December 22, 1998
A process for producing N-(1-alkoxyethyl)carboxylic amides by reacting alcohols of 1-5 carbon atoms with N-vinylcarboxylic amides in the presence of an acidic catalyst, or by utilizing unreacted starting material, unreacted intermediate or unrecovered product for synthesis of N-(1-al
5789619 Highly polymerizable N-vinylcarboxylic acid amide and production process thereof August 4, 1998
A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizab
5455042 Ointment comprising a homogenous mixture of a polymer or copolymer of N-vinylacetamide, water an October 3, 1995
The subject invention relates to an ointment comprising a homogeneous mixture of polymer or copolymer of N-vinylacetamide, as an essential component, water and/or alcohols, and a pharmacologically active component. The ointment may be coated or plastered onto the skin or mucosa of a
5407996 Method for producing ceramics using crosslinked N-vinylcarboxylic and amide resin April 18, 1995
A liquid absorption agent for water or organic solvents comprising, as a main component, a crosslinked N-vinylcarboxylic acid amide resin comprising the backbone chain of a homopolymer or copolymer comprising repeating units of the formula shown below crosslinked with a crosslinking
5362918 Process for producing acetaldehyde dimethylacetal November 8, 1994
A process for producing acetaldehyde dimethylacetal comprising reacting acetaldehyde and methanol in the presence of an acid catalyst is disclosed, in which the reaction is carried out in a part of a rectification tower while conducting rectification to withdraw the water by-produced
5344655 External application base or auxiliary agent and external application composition for human bein September 6, 1994
A (co)polymer suitable for bases or auxiliary agents for external application (for example, hydrophilic gels, adhesives, thickeners or excipients) to be coated or plastered onto the skin or mucosa of a human being or animal, such as ointment agents (ointment, hydrogel, jelly or cream
5338815 Fine particulate crosslinked type n-vinylamide resin and microgel, process for preparing same, a August 16, 1994
A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and
5300606 Liquid absorption agent April 5, 1994
A liquid absorption agent for water or organic solvents comprising, as a main component, a crosslinked N-vinylcarboxylic acid amide resin comprising the backbone chain of a homopolymer or copolymer comprising repeating units of the formula shown below crosslinked with a crosslinking
5280095 Fine particulate crosslinked type N-vinylamide resin and microgel, process for preparing same, a January 18, 1994
A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and
5254338 External application base or auxiliary agent and external application composition for human bein October 19, 1993
A (co)polymer suitable for bases or auxiliary agents for external application (for example, hydrophilic gels, adhesives, thickeners or excipients) to be coated or plastered onto the skin or mucosa of a human being or animal, such as ointment agents (ointment, hydrogel, jelly or cream










 
 
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