THERMOSETTING POWDER COATING COMPOSITION
    81.
    发明公开
    THERMOSETTING POWDER COATING COMPOSITION 失效
    WARMEVERNETZENDE粉末涂料,ZUSAMMENSETZUNG

    公开(公告)号:EP0871682A1

    公开(公告)日:1998-10-21

    申请号:EP96944030.0

    申请日:1996-12-12

    Abstract: Proposed is a thermosetting powder coating composition comprising a mixture of particles reactive towards one another and a catalyst, with a portion of the reactive particles comprising a polymer reacting with epoxy to form ester forming or ether forming groups, while another portion comprises an at least bifunctional cross-linking agent which contains 2-oxo-1,3-dioxolan-4-yl groups, hereinafter referred to as cyclocarbonate groups, and, optionally, epoxy groups, with both the polymer reacting with epoxy to form ester forming and/or ether forming groups and the cross-linking agent being obtained by means of a non-vinylic addition and/or polymerisation process. The catalyst used as ring opener for the cyclocarbonate groups is present in a quantity of 0,01 to 10, preferably 0,1 to 5, parts by weight per 100 parts by weight of the mixture of particles reactive towards one another. The quantity of epoxy oxygen present in the cross-linking agent after CO2 unblocking preferably is at least 0,4 wt.%. The reactive polymer preferably is a polymer containing groups reactive towards epoxy such as carboxyl, anhydride and/or hydroxyl groups, with preference being given to polyesters and/or polyurethanes.

    THERMOSET COATING COMPOSITIONS HAVING IMPROVED HARDNESS AND CURING PROPERTIES
    83.
    发明公开
    THERMOSET COATING COMPOSITIONS HAVING IMPROVED HARDNESS AND CURING PROPERTIES 失效
    具有改进的热固性涂料组合物密度和改进的固化

    公开(公告)号:EP0842234A1

    公开(公告)日:1998-05-20

    申请号:EP96919338.0

    申请日:1996-06-07

    CPC classification number: C09D167/00 C09D201/00 C08L61/20 C08L2666/14

    Abstract: The present invention provides an amino curable polyester oligomer composition having low viscosity and a narrow molecular weight distribution comprising one or a mixture of oligomers (a) and (b), wherein R is the residue of at least one aliphatic, cycloaliphatic or mixed aliphatic/aromatic polycarboxylic acid having from 2 to about 20 carbon atoms, R1 is the residue of at least one aliphatic, cycloaliphatic or mixed aliphatic/cycloaliphatic polyol having from 2 to about 20 carbon atoms, A is a radical of formula (I); B is a radical of formula (II), wherein R4 is H, OH, halogen or an organic radical containing 1 to 4 carbon atoms, R5 is a direct bond or an organic radical containing 1 to 20 carbon atoms and R6 is an organic radical containing 2 to 20 carbon atoms, n is a number averaging from greater than 0 up to less than 2 and P is a number averaging from about 0.5 up to less than 2, said composition further characterized by a number average molecular weight in the range of from about 250 to about 1,000 and a polydispersity of less than about 2.0. The invention also provides for curable blends of these polyester oligomers with other polymers such as polyesters, alkyds, acrylic polymers and the like, which may be further used to prepare curable coating and paint formulations, and also may contain other ingredients such as a cross-linking catalyst, fillers, pigments and the like. When cured, the coatings of this invention exhibit improved physical and chemical properties when compared with cured coatings which do not contain the polyester oligomer component.

    LACKE UND VERWENDUNG DIESER LACKE ALS DECKLACKE ZUR LACKIERUNG VON AUTOMOBILKAROSSERIEN
    84.
    发明授权
    LACKE UND VERWENDUNG DIESER LACKE ALS DECKLACKE ZUR LACKIERUNG VON AUTOMOBILKAROSSERIEN 失效
    将此作为油漆和涂料面漆喷漆汽车主体的

    公开(公告)号:EP0531463B2

    公开(公告)日:1997-11-05

    申请号:EP91921018.7

    申请日:1991-05-06

    Abstract: The invention relates to lacquers containing a compound of general formula (I) or a mixture of compounds of general formula (I), in which n, m, R?1, R2, R3, R4 and R5¿ have the following meaning: n stands for a number between 2 and 25, preferably a number between 5 and 15, m stands for a number from 0 to 5, X and Y can be identical or different and stand for a functional group, e.g. a hydroxyl, amino, carboxyl or NCO group, R?1 and R4¿ can be identical or different and stand for an alkylene residue, preferably an alkylene residue with 1 to 6 carbon atoms, or for an arylene residue, preferably a phenylene residue, R?2 and R3¿ can be identical or different and stand for an alkyl residue, preferably an alkyl residue with 1 to 3 carbon atoms, or for an aryl residue, preferably a phenyl residue, R5 stands for (a) or (b), in which Z stands for X, Y or R2. Compounds of general formula (I) improve in particular the resistance to acids, brushes and weather as well as the water-repellent properties of the lacquer coatings produced with the lacquers.

    Weather and soiling-resistant silicone-containing coating composition
    86.
    发明公开
    Weather and soiling-resistant silicone-containing coating composition 失效
    耐候性和耐污染的含有机硅的涂料组合物

    公开(公告)号:EP0759457A2

    公开(公告)日:1997-02-26

    申请号:EP96113259.4

    申请日:1996-08-19

    CPC classification number: C09D183/04 C09D201/00 C08L83/00

    Abstract: A coating agent composition comprising:

    (A) an organic resin, and
    (B) a silicone compound represented by the average composition formula (1):

            (X) a (Y') b (R 1 ) c SiO (4-a-b-c)/2      (1)

    wherein X is a particular functional group containing organic group, Y' is a hydrolyzable group or an admixture of a hydrolyzable group and the silanol group, R 1 is a monovalent hydrocarbon group, a ranges from 0.05 to 0.90, b 0.12 to 1.88, and c 0.10 to 1.00, a + b + c being in the range of 2.02 to 2.67. The amount of the silicon atoms to which said functional group-containing organic group X is bonded is 5 to 90 mol % based on the entire silicon atoms, and the amount of the T unit of R 1 -SiO 3/2 is 10 to 95 mole % based on the entire siloxane units. This composition is useful to form a coating film excellent in weathering resistance, adhesion, stain resistance, scuffing resistance, water resistance and chemical resistance and therefore suitable for protection of articles exposed outdoors.

    Abstract translation: (1):(X)a(Y')b(R1)cSiO(4-abc)/ 2表示的有机树脂和(B)有机硅化合物的涂布剂组合物, (1)其中X是含特定官能团的有机基团,Y'是可水解基团或可水解基团与硅烷醇基团的混合物,R1是一价烃基团,其范围为0.05-0.90,b0.12-1.88 ,并且c 0.10至1.00,a + b + c在2.02至2.67的范围内。 所述含有官能团的有机基团X所键合的硅原子的量相对于全部硅原子为5〜90摩尔%,R 1 -SiO 3/2的T单元的量为10〜95摩尔% 基于整个硅氧烷单位。 该组合物用于形成耐候性,粘合性,耐污染性,耐擦伤性,耐水性和耐化学性优异的涂膜,因此适合于保护暴露在户外的制品。

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