A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FILTRATE IMPROVER FOR HOUSING MATERIAL AND FILTRATE IMPROVING METHOD
PROBLEM TO BE SOLVED: To provide a filtrate improver improving filtration property during papermaking manufacturing of a fiber mixed sheet and a simple filtration improving method capable of reducing curing and hardening time of the papermade fiber mixed sheet, high in dimensional accuracy of a manufactured product and capable of maintaining required strength as the product.SOLUTION: There is provided a filtration improver used for papermaking manufacturing a fiber mixed sheet in a housing board and containing a copolymer of dimethylamino ethyl(meth)acrylate methylchloride quaternary salt and/or dimethylamino ethyl(meth)acrylate methyl chloride quaternary salt, which is a linear cation polymer with molecular weight of 1,000,000 to 5,000,000 and acrylamide. there is provided a filtration improver preferably having copolymerization ratio of the acrylamide in all monomer of the linear cation polymer of 0 to 70 mol%. There is provided a filtration improving method of the fiber mixed sheet by adding the filtration improver to a raw material slurry before papermaking of the fiber mixed sheet during papermaking manufacturing of the fiber mixed sheet in a housing board.SELECTED DRAWING: None
【課題】繊維混入板の抄造製造時の濾水性を改善させる濾水向上剤、及び抄造された繊維混入板の養生・硬化時間を短縮でき、かつ、製造品の寸法精度が高く製品としての要求強度を維持できる簡便な濾水向上方法を提供する。【解決手段】建材ボードにおける繊維混入板の抄造製造に用いる濾水向上剤であって、分子量１００万〜５００万の直鎖型カチオンポリマーであるジメチルアミノエチル（メタ）アクリレート・メチルクロライド４級塩及び／又はジメチルアミノエチル（メタ）アクリレート・メチルクロライド４級塩とアクリルアミドの共重合体を含有する濾水向上剤。前記直鎖型カチオンポリマーの全単量体中におけるアクリルアミドの共重合比が０〜７０モル％であることが好ましい濾水向上剤。建材ボードにおける繊維混入板の抄造製造時において、該繊維混入板の抄造前原料スラリーに前記濾水向上剤を添加する繊維混入板の濾水向上方法。【選択図】なし
FILTRATE IMPROVER FOR HOUSING MATERIAL AND FILTRATE IMPROVING METHOD
PROBLEM TO BE SOLVED: To provide a filtrate improver improving filtration property during papermaking manufacturing of a fiber mixed sheet and a simple filtration improving method capable of reducing curing and hardening time of the papermade fiber mixed sheet, high in dimensional accuracy of a manufactured product and capable of maintaining required strength as the product.SOLUTION: There is provided a filtration improver used for papermaking manufacturing a fiber mixed sheet in a housing board and containing a copolymer of dimethylamino ethyl(meth)acrylate methylchloride quaternary salt and/or dimethylamino ethyl(meth)acrylate methyl chloride quaternary salt, which is a linear cation polymer with molecular weight of 1,000,000 to 5,000,000 and acrylamide. there is provided a filtration improver preferably having copolymerization ratio of the acrylamide in all monomer of the linear cation polymer of 0 to 70 mol%. There is provided a filtration improving method of the fiber mixed sheet by adding the filtration improver to a raw material slurry before papermaking of the fiber mixed sheet during papermaking manufacturing of the fiber mixed sheet in a housing board.SELECTED DRAWING: None
【課題】繊維混入板の抄造製造時の濾水性を改善させる濾水向上剤、及び抄造された繊維混入板の養生・硬化時間を短縮でき、かつ、製造品の寸法精度が高く製品としての要求強度を維持できる簡便な濾水向上方法を提供する。【解決手段】建材ボードにおける繊維混入板の抄造製造に用いる濾水向上剤であって、分子量１００万〜５００万の直鎖型カチオンポリマーであるジメチルアミノエチル（メタ）アクリレート・メチルクロライド４級塩及び／又はジメチルアミノエチル（メタ）アクリレート・メチルクロライド４級塩とアクリルアミドの共重合体を含有する濾水向上剤。前記直鎖型カチオンポリマーの全単量体中におけるアクリルアミドの共重合比が０〜７０モル％であることが好ましい濾水向上剤。建材ボードにおける繊維混入板の抄造製造時において、該繊維混入板の抄造前原料スラリーに前記濾水向上剤を添加する繊維混入板の濾水向上方法。【選択図】なし
FILTRATE IMPROVER FOR HOUSING MATERIAL AND FILTRATE IMPROVING METHOD
建材ボード用濾水向上剤及び濾水向上方法
SUGIHARA MASAHIRO (author)
2017-10-19
Patent
Electronic Resource
Japanese
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen