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公开(公告)号：US11529302B2
公开(公告)日：2022-12-20
申请号：US16441844
申请日：2019-06-14
申请人： RICOH COMPANY, LTD.
发明人： Takenori Suenaga , Masahide Kobayashi , Mitsunobu Morita , Takashi Okada , Soh Noguchi , Tatsuki Yamaguchi
摘要： Provided is a composition including: an acrylamide compound represented by general formula (1) below; urethane (meth)acrylate having a SI value of 3 or less in a skin sensitization test; and a polymerization initiator having a molecular weight of 800 or greater, where in general formula (1), R1 represents an alkyl group containing 1 through 6 carbon atoms, X represents an alkylene group containing 1 through 6 carbon atoms, and Y represents any one selected from the group consisting of general formula (2) below and general formula (3) below, where in general formula (2), R2 represents an alkyl group containing 1 through 10 carbon atoms, and * represents a binding site with X above, where in general formula (3), R2 represents an alkyl group containing 1 through 10 carbon atoms, and * represents a binding site with X above.
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2.发明授权公开(公告)号：US11208516B2
公开(公告)日：2021-12-28
申请号：US16523657
申请日：2019-07-26
申请人： RICOH COMPANY, LTD.
发明人： Masahide Kobayashi , Mitsunobu Morita , Takenori Suenaga , Soh Noguchi , Takashi Okada , Tatsuki Yamaguchi
IPC分类号： C09D11/101 , C09D11/107 , C09D11/30 , C08F220/58 , B41M7/00 , B33Y70/00 , B33Y30/00 , B33Y10/00 , B29C64/264 , B41M5/00 , B29C64/255 , B29C64/112 , B29K33/00 , B33Y80/00
摘要： Provided is a composition including an acrylamide compound having a molecular weight of 150 or greater but 250 or less (A1), and a monomer having a cyclic structure represented by General Formula (3) below, or General Formula (4) below, or both (A2), where, in General Formulae (3) and (4), L is a single bond or a straight chain or branched alkylene group that has from 1 through 10 carbon atoms and may include an oxygen atom, a nitrogen atom, or a sulfur atom; A is a cyclic structure that has from 2 through 10 carbon atoms and may include an oxygen atom, a nitrogen atom, or a sulfur atom; R6 is a hydrogen atom or a methyl group; and R7 and R8 are each a straight chain or branched alkyl group having from 1 through 10 carbon atoms.
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公开(公告)号：US11096883B2
公开(公告)日：2021-08-24
申请号：US16441773
申请日：2019-06-14
申请人： RICOH COMPANY, LTD.
发明人： Takenori Suenaga , Masahide Kobayashi , Mitsunobu Morita , Takashi Okada , Soh Noguchi , Tatsuki Yamaguchi
摘要： Provided is a composition including: an acrylamide compound represented by general formula (1) in 20% by mass or greater but 50% by mass or less; a multifunctional monomer in 40% by mass or greater but 70% by mass or less; and a polymerization initiator, where in general formula (1), R1 represents alkyl group containing 1 through 6 carbon atoms, X represents alkylene group containing 1 through 6 carbon atoms, and Y represents any one selected from the group consisting of general formula (2) below and general formula (3) below, where in general formula (2), R2 represents alkyl group containing 1 through 10 carbon atoms, and * represents binding site with X above, where in general formula (3), R2 represents alkyl group containing 1 through 10 carbon atoms, and * represents binding site with X above.
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4.发明授权公开(公告)号：US11059985B2
公开(公告)日：2021-07-13
申请号：US16426523
申请日：2019-05-30
申请人： Ricoh Company, Ltd.
发明人： Masahide Kobayashi , Mitsunobu Morita , Takenori Suenaga , Soh Noguchi , Takashi Okada , Tatsuki Yamaguchi
IPC分类号： C09D11/38 , B41M7/00 , C09D11/328 , C09D11/322 , B41J2/21 , B41J11/00
摘要： Provided is a composition including an acrylamide compound (A1) having a molecular weight of 150 or greater but 250 or less, and a trifunctional or higher polymerizable compound (A2), wherein an amount of the trifunctional or higher polymerizable compound (A2) is 1% by mass or greater but 30% by mass or less relative to a total amount of the composition.
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公开(公告)号：US11629259B2
公开(公告)日：2023-04-18
申请号：US17126409
申请日：2020-12-18
申请人： RICOH COMPANY, LTD.
摘要： An active energy ray curable composition contains an allophanate-bond-containing compound having an activatable group at exposure to active energy rays and a polyester resin having a polymerizable unsaturated bond.
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公开(公告)号：US11479622B2
公开(公告)日：2022-10-25
申请号：US16822099
申请日：2020-03-18
申请人： RICOH COMPANY, LTD.
发明人： Masahide Kobayashi , Mitsunobu Morita , Takashi Okada , Takenori Suenaga , Soh Noguchi , Tatsuki Yamaguchi
IPC分类号： C09D11/30 , C09D11/101 , C08F2/48 , C08F20/28 , C08F22/38 , A45D31/00 , B33Y80/00 , B33Y10/00 , B33Y70/00
摘要： An active energy ray curable composition contains an acrylamide compound A1 represented by the following Chemical formula 1 or the following Chemical formula 2; a multi-functional polymerizable compound B1 having an SI value of 3 or less in a skin sensitivity test; a polymerization initiator C1 having no maximum absorption peak in a wavelength range of from 365 to 405 nm; and a hydrogen donor D,
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公开(公告)号：US20220062178A1
公开(公告)日：2022-03-03
申请号：US17525521
申请日：2021-11-12
申请人： RICOH COMPANY, LTD.
发明人： Tadahiko Morinaga , Tatsuru Moritani , Tatsuki Yamaguchi , Masaru Ohgaki , Shinji Aoki , Yuichi Sato
摘要： A particulate poly(lactic-co-glycolic) acid (PLGA) is provided. The particulate PLGA comprises a poly(lactic-co-glycolic) acid (PLGA), and has an average volume-based particle diameter of 80 nm or less and a relative span factor (R.S.F.) satisfying the following formula (1): 0
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