HRP950396B1 - Process for the preparation of paraformaldehyde - Google Patents

Process for the preparation of paraformaldehyde

Info

Publication number
HRP950396B1
HRP950396B1 HRP950396A HRP950396B1 HR P950396 B1 HRP950396 B1 HR P950396B1 HR P950396 A HRP950396 A HR P950396A HR P950396 B1 HRP950396 B1 HR P950396B1
Authority
HR
Croatia
Prior art keywords
solution
zones
heated
paraformaldehyde
preparation
Prior art date
Application number
Other languages
English (en)
Inventor
Luis Eek-Vancells
Original Assignee
Patentes Novedades Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patentes Novedades Sa filed Critical Patentes Novedades Sa
Publication of HRP950396A2 publication Critical patent/HRP950396A2/hr
Publication of HRP950396B1 publication Critical patent/HRP950396B1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C07C47/04—Formaldehyde
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cosmetics (AREA)
HRP9402512 1994-12-09 1995-07-10 Process for the preparation of paraformaldehyde HRP950396B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09402512A ES2087041B1 (es) 1994-12-09 1994-12-09 Procedimiento para la preparacion de paraformaldehido.

Publications (2)

Publication Number Publication Date
HRP950396A2 HRP950396A2 (en) 1997-10-31
HRP950396B1 true HRP950396B1 (en) 2001-02-28

Family

ID=8288212

Family Applications (1)

Application Number Title Priority Date Filing Date
HRP9402512 HRP950396B1 (en) 1994-12-09 1995-07-10 Process for the preparation of paraformaldehyde

Country Status (29)

Country Link
US (1) US5686554A (no)
EP (1) EP0716104B1 (no)
JP (1) JP2796669B2 (no)
KR (1) KR100249275B1 (no)
CN (1) CN1061641C (no)
AT (1) ATE193308T1 (no)
AU (1) AU695649B2 (no)
CA (1) CA2153452C (no)
CZ (1) CZ288105B6 (no)
DE (1) DE69517138T2 (no)
EE (1) EE03254B1 (no)
ES (1) ES2087041B1 (no)
FI (1) FI113780B (no)
GR (1) GR3034085T3 (no)
HR (1) HRP950396B1 (no)
HU (1) HU214094B (no)
MX (1) MX192468A (no)
NO (1) NO307383B1 (no)
NZ (1) NZ272534A (no)
PL (1) PL179331B1 (no)
PT (1) PT716104E (no)
RU (1) RU2148592C1 (no)
SA (1) SA95160120B1 (no)
SG (1) SG33401A1 (no)
TH (1) TH12621A (no)
TW (1) TW285666B (no)
UA (1) UA44697C2 (no)
VN (1) VN498A1 (no)
YU (1) YU48905B (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997034941A1 (en) * 1996-03-20 1997-09-25 Hoechst Celanese Corporation Addition of amine to improve paraformaldehyde

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001235A (en) * 1958-07-26 1961-09-26 Sumitomo Chemical Co Method for the manufacture of a formaldehyde polymer in a crape-chip form
US2992277A (en) 1959-04-28 1961-07-11 Du Pont Paraformaldehyde manufacture
ES341724A1 (es) * 1967-06-13 1968-10-01 Ordieres Perfeccionamientos introducidos en los procedimientos de polimerizacion de soluciones de formaldehido.
FR1547172A (fr) * 1967-07-17 1968-11-22 Sir Soc Italiana Resine Spa Procédé de production du paraformaldéhyde
FR2067169A1 (en) * 1969-11-19 1971-08-20 Charbonnages Ste Chimique Paraformaldehyde from aq formaldehyde
US4550213A (en) 1984-06-29 1985-10-29 Celanese Corporation Method of manufacture for paraformaldehyde prills
DE3925966A1 (de) 1989-08-05 1991-02-07 Leuna Werke Veb Lp 86 148 - verfahren zur herstellung von koernigem paraformaldehyd
CN1029351C (zh) 1989-09-16 1995-07-19 陈方 高甲醛含量的多聚甲醛的制造方法
US5302277A (en) * 1990-11-28 1994-04-12 Mitsui Toatsu Chemicals, Incorporated Process for producing paraformaldehyde of high formaldehyde content

Also Published As

Publication number Publication date
US5686554A (en) 1997-11-11
PT716104E (pt) 2000-11-30
RU2148592C1 (ru) 2000-05-10
TH12621A (th) 1996-09-10
KR100249275B1 (ko) 2000-03-15
KR960022425A (ko) 1996-07-18
DE69517138D1 (de) 2000-06-29
EP0716104B1 (en) 2000-05-24
GR3034085T3 (en) 2000-11-30
FI113780B (fi) 2004-06-15
HU9502048D0 (en) 1995-09-28
MX192468A (es) 1999-06-24
JPH08165262A (ja) 1996-06-25
CZ243995A3 (en) 1996-06-12
HRP950396A2 (en) 1997-10-31
ES2087041A1 (es) 1996-07-01
CN1124242A (zh) 1996-06-12
NZ272534A (en) 1996-03-26
CZ288105B6 (cs) 2001-04-11
CA2153452C (en) 2006-08-29
DE69517138T2 (de) 2001-02-01
HU214094B (en) 1997-12-29
PL179331B1 (pl) 2000-08-31
SA95160120B1 (ar) 2005-05-16
EE03254B1 (et) 2000-02-15
CA2153452A1 (en) 1996-06-10
HUT75584A (en) 1997-05-28
VN498A1 (no) 1998-05-25
ATE193308T1 (de) 2000-06-15
EP0716104A1 (en) 1996-06-12
FI953683A0 (fi) 1995-08-02
CN1061641C (zh) 2001-02-07
YU48905B (sh) 2002-10-18
ES2087041B1 (es) 1997-03-16
PL310573A1 (en) 1996-06-10
YU54395A (sh) 1997-12-05
TW285666B (no) 1996-09-11
AU695649B2 (en) 1998-08-20
FI953683A (fi) 1996-06-10
NO952691L (no) 1996-06-10
JP2796669B2 (ja) 1998-09-10
NO307383B1 (no) 2000-03-27
NO952691D0 (no) 1995-07-06
MX192468B (no) 2016-01-29
AU2496095A (en) 1996-06-20
UA44697C2 (uk) 2002-03-15
SG33401A1 (en) 1996-10-18

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Legal Events

Date Code Title Description
A1OB Publication of a patent application
AIPI Request for the grant of a patent on the basis of a substantive examination of a patent application
B1PR Patent granted
ODRP Renewal fee for the maintenance of a patent

Payment date: 20060623

Year of fee payment: 12

PBON Lapse due to non-payment of renewal fee

Effective date: 20070711