公开(公告)号：US4886854A

公开(公告)日：1989-12-12

申请号：US58905

申请日：1987-06-05

申请人： Efthalia V. Markessini ,  Andrew C. Markessini

发明人： Efthalia V. Markessini ,  Andrew C. Markessini

IPC分类号： C08L3/04 ,  C08G12/02 ,  C08G14/02 ,  C08L3/00 ,  C08L5/00 ,  C08L5/02 ,  C08L61/04 ,  C08L61/06 ,  C08L61/20 ,  C08L61/24 ,  C08L97/00 ,  C08L97/02 ,  C09K15/00

CPC分类号： C08L61/04 ,  C08G12/02 ,  C08G14/02 ,  C08L61/20 ,  C08L97/02 ,  C08L97/005 ,  Y10T428/31989

摘要： A substitute for amino and phenolic resins is disclosed. It is used in the polycondensation of such resins based on formaldehyde for bonding water penetrable cellulosic particles. The substitute comprises an aqueous solution of(a) either at least one aldehyde together with at least one amide and/or together with at least one phenol, or a non-resinous condensation product of formaldehyde and urea, and(b) a sugar or a sugar derivative or their byproducts or a starch or its degradation products or a mixture thereof, and/or(c) a raw and/or treated lignosulfonate.This substitute also reduces the free formaldehyde of the resulting board without impairing the other properties thereof.

公开(公告)号：US4162178A

公开(公告)日：1979-07-24

申请号：US893851

申请日：1978-04-06

申请人： Andrew C. Markessini

发明人： Andrew C. Markessini

IPC分类号： C08L61/24 ,  B29J5/00

CPC分类号： C08L61/24 ,  Y10T428/253

摘要： A reactive catalyst for the polycondensation of amino resins used for bonding water-penetrable cellulosic particles is disclosed. Said catalyst, if used in combination with a known catalyst, increases the rate of polycondensation of the resin while at the same time allowing the use of lower amounts of resin solids without imparting any loss in bonding strength. The catalyst comprises a concentrated aqueous solution of a mixture of organic and inorganic components, the organic components being formaldehyde and urea or a non resinous condensation product of formaldehyde and urea, and the inorganic component being a water-soluble alkali metal halide.

摘要翻译： 公开了用于粘合水可渗透纤维素颗粒的氨基树脂的缩聚反应催化剂。 所述催化剂如果与已知的催化剂组合使用，则增加了树脂的缩聚速率，同时允许使用较少量的树脂固体，而不会导致粘合强度的任何损失。 催化剂包括有机和无机组分的混合物的浓缩水溶液，有机组分是甲醛和脲，或甲醛和脲的非树脂缩合产物，无机组分是水溶性碱金属卤化物。

公开(公告)号：US4161467A

公开(公告)日：1979-07-17

申请号：US839248

申请日：1977-10-04

申请人： Andrew C. Markessini

发明人： Andrew C. Markessini

IPC分类号： C08L61/24

CPC分类号： C08L61/24 ,  Y10T428/253 ,  Y10T428/29

摘要： A reactive catalyst for the polycondensation of amino resins used for bonding water-penetrable cellulosic particles is disclosed. Said catalyst, if used in combination with a known catalyst, increases the rate of polycondensation of the resin while at the same time allowing the use of lower amounts of resin solids without imparting any loss in bonding strength. The catalyst comprises a concentrated aqueous solution of a mixture of organic and inorganic components, the organic components being formaldehyde and urea or a non resinous condensation product of formaldehyde and urea, and the inorganic component being a water-soluble alkali metal halide.