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A platform for research: civil engineering, architecture and urbanism
Resin composition and resin precoated sand
A resin composition for resin-coated sand, the resin composition containing a lignin-modified novolac-type phenolic resin, the content of free phenols in the lignin-modified novolac-type phenolic resin being 2 mass% or less.
一种树脂覆膜砂用树脂组合物，该树脂组合物含有木质素改性酚醛清漆型酚醛树脂，上述木质素改性酚醛清漆型酚醛树脂中的游离酚类的含量为2质量％以下。
Resin composition and resin precoated sand
A resin composition for resin-coated sand, the resin composition containing a lignin-modified novolac-type phenolic resin, the content of free phenols in the lignin-modified novolac-type phenolic resin being 2 mass% or less.
一种树脂覆膜砂用树脂组合物，该树脂组合物含有木质素改性酚醛清漆型酚醛树脂，上述木质素改性酚醛清漆型酚醛树脂中的游离酚类的含量为2质量％以下。
Resin composition and resin precoated sand
树脂组合物和树脂覆膜砂
MURAI TAKETOSHI (author)
2024-12-31
Patent
Electronic Resource
Chinese
IPC:
B22C
FOUNDRY MOULDING
,
Gießformen
/
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
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