公开(公告)号：JPH04327515A

公开(公告)日：1992-11-17

申请号：JP3406592

申请日：1992-01-27

Applicant: BAYER AG

Inventor： MIHIYAERU MIYURAA ,  BORUFUGANGU POZUTSUN ,  GIYUNTAA BEBERUMAIYAA ,  ROORANTO RIHITAA

IPC: A61C13/087 ,  A61K6/083 ,  A61K6/884

Abstract: PURPOSE: To obtain a dental molding product highly cross-linked in short molding device and having high mechanical strength (e.g. hardness and abrasion resistance) and resistance to solvent, especially false tooth. CONSTITUTION: This dental cross-linked molding product having the above effects is obtained by molding a curable composition consisting essentially of (A) 40-90wt.% polymer component comprising 40-100wt.% uncross-linked polymer and 0-60wt.% cross-linked polymer and having 8-12.5(cal/cm ) , preferably 8.5-12(cal/cm ) solubility parameter, (B) 10-60wt.% polyfunctional (meth) acrylate and (C) 0.1-5wt.% optical activating agent into a molding product by a thermoplastic method and cross-linking the molding product by photopolymerization. The molding product includes e.g. false teeth, crowns, bridges, veneer shells, inlays (e.g. hole-embedding of dental caries) and onlays (facing), especially false teeth.

公开(公告)号：JPS59108025A

公开(公告)日：1984-06-22

申请号：JP22454983

申请日：1983-11-30

Applicant: Bayer Ag

Inventor： ROORANTO RIHITAA ,  HANSU HEETERU ,  HANSU PIITAA MIYUURAA

IPC: C08G18/00 ,  C07D251/34 ,  C08G18/02 ,  C08G18/72 ,  C08G18/79

CPC classification number: C08G18/725 ,  C07D251/34 ,  C08G18/794 ,  C08G2101/0008 ,  Y10S521/902

公开(公告)号：JPS62158713A

公开(公告)日：1987-07-14

申请号：JP31594686

申请日：1986-12-29

Applicant: BAYER AG

Inventor： ROORANTO RIHITAA ,  HANSU PEETAA MIYUURAA ,  BUIRUHERUMU BUEEBAA ,  RUDORUFU HOMUBATSUHA ,  BERUNTO RIBERI ,  RARUFU BUTSUSHIYU ,  HANSU GERUTO METSUINGAA

IPC: C07C67/00 ,  C07C241/00 ,  C07C263/18 ,  C07C265/00 ,  C07F7/22 ,  C08G18/22 ,  C08G18/24 ,  C08G18/70 ,  C08G18/72

公开(公告)号：JPS60237029A

公开(公告)日：1985-11-25

申请号：JP8768185

申请日：1985-04-25

Applicant: BAYER AG

Inventor： YOAHIMU PUROPUSHIYUTO ,  MIHAERU ZONTAAKU ,  ROORANTO RIHITAA ,  HANSU PEETAA MIYUURAA

IPC: C08G18/00 ,  C07B31/00 ,  C07B41/12 ,  C07C67/00 ,  C08F8/00 ,  C08G18/42 ,  C08G18/48 ,  C08G18/62 ,  C08G65/10 ,  C08G65/26

公开(公告)号：JPS57137313A

公开(公告)日：1982-08-24

申请号：JP46782

申请日：1982-01-06

Applicant: BAYER AG

Inventor： ROORANTO RIHITAA ,  HANSU PEETAA MIYUURAA ,  KUUNOO BUAAGUNAA

IPC: C08G18/00 ,  C07D251/34 ,  C08G18/02 ,  C08G18/79

公开(公告)号：JPH01271460A

公开(公告)日：1989-10-30

申请号：JP21083788

申请日：1988-08-26

Applicant: BAYER AG

Inventor： BERUNHARUTO YANZEN ,  HANSU PEETAA MIYURAA ,  ROORANTO RIHITAA ,  BORUFURAMU MAIYAA ,  OTSUTOFURIITO SHIYURAKU

IPC: C08L101/00 ,  A61L15/12 ,  C08G18/08 ,  C08G18/10 ,  C08G18/30 ,  C08G77/46 ,  C08K5/5419 ,  C08K5/5435 ,  C08L75/00 ,  C08L75/04

公开(公告)号：JPS62192168A

公开(公告)日：1987-08-22

申请号：JP3261087

申请日：1987-02-17

Applicant: BAYER AG

Inventor： ROORANTO RIHITAA ,  BORUFURAMU MAIYAA ,  HANSU PEETAA MIYURAA ,  DEIITOMARU SHIEEPERU ,  DEIITOMARU SHIYUTORATSUHE

IPC: A61D9/00 ,  A61F13/04 ,  A61L15/07

公开(公告)号：JPS6040112A

公开(公告)日：1985-03-02

申请号：JP14975584

申请日：1984-07-20

Applicant: BAYER AG

Inventor： ROORANTO RIHITAA ,  HANSU PEETERU MIYUURAA ,  RUDORUFU HONBATSUHA ,  MANFURETO DORUHANZEN ,  GETSUA ABUAARU ,  HANSUUARUBUREHITO FURAITAAKU

IPC: C08G18/00 ,  C08G18/10 ,  C08G18/16 ,  C08G18/18 ,  C08G18/24 ,  C08G18/70 ,  C08G18/71 ,  C08G18/72

Abstract: The present invention relates to polyisocyanate compositions containing reversibly blocked catalysts for the isocyanate addition reaction, characterized in that they contain (a) at least one organic polyisocyanate, (b) at least one addition product dissolved or dispersed in the polyisocyanate compositions, of a sulfonyl isocyanate with a tertiary amine and/or with a catalyst having a tin(II)- or tin(IV)-carboxylate structure as the reversibly blocked catalyst. The present invention also relates to a process for producing these polyisocyanate compositions and to the use of new polyisocyanate compositions as reactants for compounds containing isocyanate-reactive groups for the production of isocyanate addition products such as polyurethane plastics using a one-component or two-component principle. The present invention finally relates to the latent polyurethane catalysts prepared from a sulfonyl isocyanate and a tin(II)- or tin(IV)-carboxylate.

公开(公告)号：JPS56142215A

公开(公告)日：1981-11-06

申请号：JP3404681

申请日：1981-03-11

Applicant: BAYER AG

Inventor： ROORANTO RIHITAA ,  HANSU PEETAA MIYURAA ,  KUNO BUAAGUNAA ,  RUUDORUFU HERUMU ,  YURUGEN TSUANDAA

IPC: C07C29/132 ,  B01J20/34 ,  C07B31/00 ,  C07B41/02 ,  C07C27/00 ,  C07C29/136 ,  C07C29/14 ,  C07C29/141 ,  C07C29/145 ,  C07C29/38 ,  C07C31/18 ,  C07C31/26 ,  C07C67/00 ,  C07C69/00 ,  C08G18/32 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G63/00 ,  C08G63/02 ,  C08G63/12 ,  C08G63/78 ,  C08G65/00 ,  C08G65/26 ,  C08G65/28

Abstract: A process for preparing a mixture of polyhydroxyl compounds having low molecular weight by catalytically hydrogenating a formose mixture with hydrogen on a metal catalyst. The hydrogenation is carried out at a pH of 7.5 to 12.5 and at elevated temperature and pressure. The formose mixture comprises (i) up to 70 wt. % formose, (ii) up to 1.6 wt. % lead ions and (iii) up to 5 wt. % calcium ions with at least one of (ii) or (iii) being present. The catalyst which is present in an amount of 4-240 wt. % (based on formose solution) is a compound taken from the group consisting of nickel, cobalt and compounds thereof. The mixture of polyhydroxyl compounds made in accordance with the present invention is useful as a starting material in the production of polyether polyols, polyester polyols and polyurethane plastics.

公开(公告)号：JPH03215268A

公开(公告)日：1991-09-20

申请号：JP14170090

申请日：1990-06-01

Applicant: BAYER AG

Inventor： BERUNHARUTO YANZEN ,  HANSUUPEETAA MIYURAA ,  ROORANTO RIHITAA

IPC: A61L15/07 ,  A61L15/12 ,  C08G18/08 ,  C08G18/30 ,  C08K3/34 ,  C08K5/549

Abstract: PURPOSE: To prevent foaming of a fixing bandage by using a polyisocyanate agent contained in a flexible support material, which comprises a polyisocyanate, a catalyst, adjuvant and an additive. CONSTITUTION: A fixed bandage contains a polyisocyanate in a flexible support material. The polyisocyanate agent comprises an organic polyisocyanate, a catalyst, an adjuvant and an additive. The adjuvant and additive are octamethylcyclotetrasiloxane compounds expressed by formula (I). In the formula (I), R indicates methyl, ethyl, or propyl, and 1