A PROCESS FOR THE CONTINUOUS PRODUCTION OF HIGH EFFICIENT AQUEOUS AMINO FORMALDEHYDE RESIN SOLUTIONS
    5.
    发明公开
    A PROCESS FOR THE CONTINUOUS PRODUCTION OF HIGH EFFICIENT AQUEOUS AMINO FORMALDEHYDE RESIN SOLUTIONS 有权
    方法用于连续生产高效率水溶液AMINOFORMALDEHYDHARZLÖSUNGEN

    公开(公告)号:EP2231735A1

    公开(公告)日:2010-09-29

    申请号:EP08864494.3

    申请日:2008-12-19

    申请人: Dynea OY

    摘要: There is disclosed a process for the continuous production of an aqueous amino formaldehyde resin solution, preferably melamine formaldehyde resin solution (MF) or urea formaldehyde resin solution (UF) or melamine-urea-formaldehyde resin (MUF) comprising the steps of: a. preparing a reaction mixture of an amino compound and an aqueous formaldehyde, b. adding a catalyst to the reaction mixture, c. condensation reacting the reaction mixture in the presence of the catalyst, characterised in that, in step a) the amino compound and the formaldehyde are added as a concentrated aqueous solution or as a solid to a total solid content in the reaction mixture of 40 - 85 wt% (dry weight relative to the total weight of the reaction mixture), wherein in step c) the condensation reaction takes place in a continuous plug flow of the reaction mixture and wherein, in step b) the catalyst is continuously added and finely dispersed into the reaction mixture through one or more addition points and in optional step d) adding an amount of amino compound after condensation, in optional step e) removing water to reach a higher solid content.

    IMPROVED METHOD FOR GLUING
    6.
    发明公开

    公开(公告)号:EP2132012A1

    公开(公告)日:2009-12-16

    申请号:EP08723963.8

    申请日:2008-02-25

    申请人: Dynea OY

    摘要: A method of joining a first and a second substrate of wood based materials is described, the method comprising the steps of: - applying a water based adhesive composition onto a first surface of said first substrate, - drying a surface layer of a second surface of the second substrate, - bringing together the first surface and a second surface of the second substrate, and - pressing the two surfaces against each other until an initial bonding is established.

    NOVEL HYBRID BINDER WITH NATURAL COMPOUNDS FOR LOW EMISSION PRODUCTS
    7.
    发明公开
    NOVEL HYBRID BINDER WITH NATURAL COMPOUNDS FOR LOW EMISSION PRODUCTS 审中-公开
    随着对低排放产品的天然化合物的新混合粘合剂

    公开(公告)号:EP2069448A2

    公开(公告)日:2009-06-17

    申请号:EP07825042.0

    申请日:2007-08-30

    申请人: Dynea OY

    摘要: Resin compositions (A) and (B) are described: wherein resin composition (A) comprises a naturally occurring component or derivative thereof comprising protein, an aromatic hydroxyl compound-aldehyde resin and an amino resin, wherein the naturally occurring component or derivative thereof is chemically bound to the aromatic hydroxyl compound-aldehyde resin to form an ncPF resin and the naturally occurring component or derivative thereof is optionally chemically bound to the amino resin; wherein resin composition (B) comprises a condensation product of a naturally occurring component or derivative thereof, an aromatic hydroxyl compound-aldehyde resin and at least 20 wt % of urea based on the total mass of the resin composition, wherein at least 50 wt % of the naturally occurring component or derivative thereof is chemically bound directly or indirectly to the aromatic hydroxyl compound-aldehyde resin (ncPF), and wherein the naturally occurring component or derivative thereof comprises protein. The resin compositions can be used as a binder for lignocellulosic or cellulosic materials which have an excellent combination of low formaldehyde emissions and high strength. Also described are low formaldehyde emissions wood products comprising unique binder combinations.

    LOW EMISSION ADHESIVE SYSTEM
    8.
    发明授权
    LOW EMISSION ADHESIVE SYSTEM 有权
    排放ARM制胶

    公开(公告)号:EP1945729B1

    公开(公告)日:2012-05-02

    申请号:EP06799568.8

    申请日:2006-10-05

    申请人: Dynea OY

    IPC分类号: C09J161/24

    摘要: An adhesive system comprising the following parts: a) a urea formaldehyde resin adhesive part; b) a hardener part comprising one or more curing agents(s), c) a polymer dispersion; and d) a formaldehyde scavenger, wherein part d) comprises a combination of urea and resorcinol, is described. A formaldehyde scavenger and a process for manufacturing of an adhesive system is also described.

    LOW FORMALDEHYDE EMISSION ADHESIVE SYSTEM
    9.
    发明授权
    LOW FORMALDEHYDE EMISSION ADHESIVE SYSTEM 有权
    具有低甲醛释放量保证金制度

    公开(公告)号:EP2265684B1

    公开(公告)日:2011-10-26

    申请号:EP09747798.8

    申请日:2009-08-12

    申请人: Dynea OY

    IPC分类号: C09J161/28 C09J161/32

    CPC分类号: C09J161/28 C09J161/32

    摘要: The invention relates to an improved two component adhesive system, a kit comprising said two adhesive components, its use and a method for production of interior wood products, in particular form-pressed products, parquet floor elements and solid wood panels with very low formaldehyde emission and to the interior wood products obtainable having improved properties. The two-component adhesive system comprises adhesive component I comprisinga 50 – 70 wt% melamine-formaldehyde (MF) type resin in 25 –40 wt% water and adhesive component II comprising 25 –40 wt% of a water based dispersion adhesive, 15 –40 wt% of a formaldehyde scavengerand an acidic compound in an amount such that the pH of adhesive component II is 1.5 –6.5,wherein adhesive component I and II are to be applied in a weight ratio I:II of 1:0.5 to 1:1.5 and the adhesive system has a molar ratio of formaldehyde (F) to total amino group (F/NH
    2 ) between 0.2 and 0.7.

    IMPROVED GLUING METHOD
    10.
    发明授权
    IMPROVED GLUING METHOD 有权
    改进的接合工艺

    公开(公告)号:EP2082003B1

    公开(公告)日:2011-07-27

    申请号:EP07834801.8

    申请日:2007-11-08

    申请人: Dynea OY

    IPC分类号: C09J5/00 C09J175/00

    摘要: A method for gluing of wood or wood based products using EPI (Emulsion-Polymer-Isocyanate) adhesive, where the adhesive is applied to one or both of the surfaces to be glued, the surfaces that are to be glued are joined and the surfaces are forced together until the adhesive is adequately hardened, wherein water is sprayed onto the surface or surfaces onto which adhesive is applied after application of adhesive and before the surfaces are joined, and where the amount of water sprayed on the surface or surfaces onto which adhesive is applied, constitutes from about 2% to about 25% of the applied amount of adhesive, is described.